Test Yourself About Muscles With Online Quiz

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Test Yourself About Muscles With Online Quiz - Quiz

Do you know how many muscles are there in our body? What is the strongest muscle in the human body? Check out our online quiz to test yourself and learn interesting facts as you play.


Questions and Answers
  • 1. 

    What is the origin of the sternocleidomastoid?

    • A.

      Sternum and Clavicle 

    • B.

      Mastoid

    • C.

      Xiphoid

    • D.

      Iliac Crest 

    Correct Answer
    A. Sternum and Clavicle 
    Explanation
    The sternocleidomastoid muscle originates from the sternum (breastbone) and clavicle (collarbone). It is a large muscle located in the front of the neck that helps with various movements of the head and neck.

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  • 2. 

    What is the insertion of the sternocleidomastoid?

    • A.

      Central tendon 

    • B.

      Superior vertebral border of scapula 

    • C.

      Mastoid 

    • D.

      Xiphoid 

    Correct Answer
    C. Mastoid 
    Explanation
    The insertion of the sternocleidomastoid muscle is the mastoid process of the temporal bone. This muscle originates from the sternum and clavicle, and its insertion at the mastoid process allows it to rotate and flex the head and neck.

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  • 3. 

    What is the action of the sternocleidomastoid?

    • A.

      Cervical extension 

    • B.

      Cervical flexion 

    • C.

      Rotation same side 

    • D.

      Option 4

    Correct Answer
    A. Cervical extension 
    Explanation
    The action of the sternocleidomastoid muscle is cervical flexion.

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  • 4. 

    What is the sternocleidomastoid innervated by?

    • A.

      Iliohypogastric, ilioinguinal, T8-T12 

    • B.

      Accessory, C2-C3

    • C.

      Intercostals 

    • D.

      Dorsal scapular 

    Correct Answer
    B. Accessory, C2-C3
    Explanation
    The sternocleidomastoid muscle is innervated by the accessory nerve (cranial nerve XI) and the cervical spinal nerves C2 and C3.

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  • 5. 

    Where does the rectus abdominis originate?

    • A.

      Pubic crest and symphysis 

    • B.

      Lower 8 ribs

    • C.

      Iliac Crest, inguinal ligament 

    • D.

      Cartilage of last 6 ribs 

    Correct Answer
    A. Pubic crest and symphysis 
    Explanation
    The rectus abdominis is a paired muscle that is located in the anterior abdominal wall. It is responsible for flexing the trunk and compressing the abdominal contents. The muscle originates from the pubic crest and symphysis, which are located in the lower part of the pelvis. This origin allows the muscle to have a strong attachment and provide stability to the pelvis and lower abdomen.

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  • 6. 

    Where does the rectus abdominis insert?

    • A.

      Xiphoid, linea alba 

    • B.

      Cartilage of ribs 1-3 and xiphoid 

    • C.

      Cartilage of ribs 5-7 and xiphoid

    • D.

      Cartilage of last 3-4 ribs 

    Correct Answer
    C. Cartilage of ribs 5-7 and xiphoid
    Explanation
    The rectus abdominis is a long, flat muscle that extends vertically along the front of the abdomen. It originates from the pubic bone and inserts into the cartilage of ribs 5-7 and the xiphoid process. This means that the muscle attaches to the lower portion of the ribcage and the small bone at the bottom of the sternum.

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  • 7. 

    What is the action of the rectus abdominis?

    • A.

      Compresses abdomen and flexes vertebral column

    • B.

      Expands abdomen and extends vertebral column 

    • C.

      Option 3

    • D.

      Option 4

    • E.

      Option 5

    Correct Answer
    A. Compresses abdomen and flexes vertebral column
    Explanation
    The rectus abdominis is a paired muscle located in the anterior abdominal wall. Its main action is to compress the abdomen, which helps in various activities like coughing, sneezing, and defecation. Additionally, it also flexes the vertebral column, which means it helps in bending the spine forward. This muscle is commonly known as the "six-pack" muscle and is responsible for maintaining posture and providing stability to the trunk.

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  • 8. 

    What is the rectus abdominis innervated by?

    • A.

      C2-C4

    • B.

      T7-T12

    • C.

      T8-T12

    Correct Answer
    A. C2-C4
    Explanation
    The rectus abdominis is innervated by the thoracic spinal nerves T7-T12.

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  • 9. 

    Where does the external oblique originate?

    • A.

      Pubic crest and symphysis

    • B.

      Iliac crest

    • C.

      Lower 8 ribs 

    • D.

      Inguinal ligament 

    Correct Answer
    C. Lower 8 ribs 
    Explanation
    The external oblique muscle originates from the lower 8 ribs. This muscle is located on the sides of the abdomen and plays a role in flexing and rotating the trunk. The lower 8 ribs serve as the attachment point for the external oblique muscle, allowing it to perform its functions effectively.

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  • 10. 

    Where does the external oblique insert?

    • A.

      Cartilage of ribs 5-7

    • B.

      Iliac crest, linea alba 

    • C.

      Cartilage of last 3 ribs 

    • D.

      Cartilage of last 6 ribs 

    Correct Answer
    B. Iliac crest, linea alba 
    Explanation
    The external oblique muscle inserts into the iliac crest and linea alba. The iliac crest is the upper curved border of the hip bone, while the linea alba is a fibrous band that runs vertically down the midline of the abdomen. The external oblique muscle is responsible for various movements of the trunk, including rotation and bending sideways. Its insertion at the iliac crest and linea alba allows it to exert force and contribute to these movements.

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  • 11. 

    What is the action of external oblique? 

    • A.

      Together compress abdomen, singly laterally flex vertebral column 

    • B.

      Singly laterally flex vertebral column 

    Correct Answer
    A. Together compress abdomen, singly laterally flex vertebral column 
    Explanation
    The external oblique muscle is responsible for both compressing the abdomen and laterally flexing the vertebral column. When both sides of the muscle contract together, they help to compress the abdomen, providing support and stability to the core. When only one side contracts, it laterally flexes or bends the vertebral column to the same side. This action allows for movements such as side bending or twisting of the torso.

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  • 12. 

    What is the external oblique innervated by?

    • A.

      T7-T12

    • B.

      T7-T12, iliohypogastric 

    • C.

      T8-T12

    • D.

      Ilioinguinal 

    Correct Answer
    B. T7-T12, iliohypogastric 
    Explanation
    The external oblique muscle is innervated by the T7-T12 spinal nerves and the iliohypogastric nerve. These nerves provide motor and sensory innervation to the muscle, allowing it to contract and sense stimuli.

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  • 13. 

    Where does the internal oblique originate?

    • A.

      Iliac crest, inguinal ligament 

    • B.

      Iliac crest, inguinal ligament, cartilage of last 6 ribs 

    • C.

      Cartilage of ribs 5-7 and xiphoid

    • D.

      Pubic crest and symphysis 

    Correct Answer
    A. Iliac crest, inguinal ligament 
    Explanation
    The internal oblique muscle originates from the iliac crest and the inguinal ligament.

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  • 14. 

    Where does the internal oblique insert?

    • A.

      Cartilage of first 3 ribs 

    • B.

      Cartilage of last 3-4 ribs 

    • C.

      Xiphoid, linea alba 

    • D.

      Cartilage of ribs 5-7 and xiphoid 

    Correct Answer
    B. Cartilage of last 3-4 ribs 
    Explanation
    The internal oblique muscle inserts into the cartilage of the last 3-4 ribs.

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  • 15. 

    What is the action of the internal oblique?

    • A.

      Together compress abdomen, singly laterally flex vertebral column 

    • B.

      Singly compress abdomen, together flex vertebral column 

    Correct Answer
    A. Together compress abdomen, singly laterally flex vertebral column 
    Explanation
    The internal oblique muscle is responsible for compressing the abdomen when both sides contract simultaneously. When only one side contracts, it laterally flexes the vertebral column. This means that the correct answer is "together compress abdomen, singly laterally flex vertebral column".

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  • 16. 

    What is the internal oblique innervated by?

    • A.

      T8-T12, iliohypogastric, ilioinguinal 

    • B.

      T7-T12

    • C.

      Dorsal scapular 

    • D.

      Thoracodorsal 

    Correct Answer
    A. T8-T12, iliohypogastric, ilioinguinal 
    Explanation
    The internal oblique muscle is innervated by the T8-T12 spinal nerves, as well as the iliohypogastric and ilioinguinal nerves. These nerves provide the necessary motor and sensory input to the muscle, allowing it to contract and perform its functions. The T8-T12 spinal nerves originate from the thoracic region of the spinal cord and supply the muscles and skin of the abdominal wall. The iliohypogastric and ilioinguinal nerves also arise from the spinal cord and provide innervation to the lower abdomen and groin region.

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  • 17. 

    Where does the transversus abdominis originate?

    • A.

      Pubic crest and symphysis 

    • B.

      Iliac crest, inguinal ligament, cartilage of last 6 ribs 

    • C.

      Cartilage of last 3-4 ribs 

    • D.

      Xiphoid, cartilage of last 6 ribs 

    Correct Answer
    B. Iliac crest, inguinal ligament, cartilage of last 6 ribs 
    Explanation
    The transversus abdominis muscle originates from the iliac crest, inguinal ligament, and cartilage of the last 6 ribs. This means that it attaches to these structures and originates from them, allowing it to play a role in stabilizing the trunk and compressing the abdominal contents.

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  • 18. 

    Where does the transversus abdominis insert?

    • A.

      Xiphoid, linea alba 

    • B.

      Cartilage of last 3-4 ribs 

    • C.

      Inferior border of rib below 

    • D.

      Superior vertebral border of scapula 

    Correct Answer
    A. Xiphoid, linea alba 
    Explanation
    The transversus abdominis muscle inserts into the xiphoid and linea alba. The xiphoid is a small cartilaginous extension at the lower end of the sternum, while the linea alba is a fibrous band that runs vertically in the midline of the abdomen. These insertions allow the transversus abdominis to contribute to the support and stabilization of the abdominal wall.

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  • 19. 

    WHat is the action of the transversus abdominis?

    • A.

      Depress ribs

    • B.

      Compress abdomen 

    • C.

      Expand abdomen 

    • D.

      Evelate scapula 

    Correct Answer
    B. Compress abdomen 
    Explanation
    The action of the transversus abdominis is to compress the abdomen. This muscle is located deep within the abdomen and plays a crucial role in stabilizing the core and providing support to the spine. When the transversus abdominis contracts, it helps to flatten and tighten the abdominal area, which can be beneficial for activities that require core strength and stability, such as lifting heavy objects or maintaining good posture.

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  • 20. 

    What is the transversus abdominis innervated by?

    • A.

      T8-T12, iliohypogastric, ilioguinal 

    • B.

      T7-T12, iliohypogastric 

    • C.

      Accessory nerve

    • D.

      Radial nerve 

    Correct Answer
    A. T8-T12, iliohypogastric, ilioguinal 
    Explanation
    The transversus abdominis muscle is innervated by the T8-T12 spinal nerves as well as the iliohypogastric and ilioguinal nerves.

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  • 21. 

    Where does the diaphragm originate?

    • A.

      Xiphoid

    • B.

      Mastoid

    • C.

      Occipital, spines c7-t12

    • D.

      Superior c4-c5

    Correct Answer
    A. Xiphoid
    Explanation
    The diaphragm originates from the xiphoid, which is a small, cartilaginous extension at the lower end of the sternum. It is responsible for separating the thoracic cavity from the abdominal cavity and plays a crucial role in the process of respiration.

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  • 22. 

    Where does the diaphragm insert?

    • A.

      Superior vertebral border of scapula

    • B.

      Superior border of rib below 

    • C.

      Central tendon 

    • D.

      Vertebral border of scapula below spine 

    Correct Answer
    C. Central tendon 
    Explanation
    The diaphragm inserts into the central tendon.

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  • 23. 

    What is the action of the diaphragm?

    • A.

      Pulls central tendon increase thorax length during inspiration 

    • B.

      Elevates ribs, increases thorax lateral and anteroposterior 

    • C.

      Depresses ribs, decreases thorax lateral and anteroposterior 

    • D.

      Option 4

    Correct Answer
    A. Pulls central tendon increase thorax length during inspiration 
    Explanation
    The action of the diaphragm is to pull the central tendon and increase thorax length during inspiration.

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  • 24. 

    What is the diaphragm innervated by?

    • A.

      Accessory nerve

    • B.

      Radial nerve

    • C.

      Phrenic nerve

    • D.

      C3-C4

    Correct Answer
    C. Phrenic nerve
    Explanation
    The diaphragm is innervated by the phrenic nerve. This nerve originates from the C3-C5 nerve roots in the cervical spine and travels down to the diaphragm. It provides the main motor innervation to the diaphragm, allowing for its contraction and relaxation during breathing. The accessory nerve is responsible for innervating the trapezius and sternocleidomastoid muscles, while the radial nerve supplies the muscles of the posterior arm and forearm. Therefore, these nerves are not directly involved in the innervation of the diaphragm.

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  • 25. 

    Where do the external intercostals originate?

    • A.

      Superior border of rib below 

    • B.

      Inferior border of ribs above 

    • C.

      Spines t2-t5

    • D.

      Superior c4-c5

    Correct Answer
    B. Inferior border of ribs above 
    Explanation
    The external intercostals originate from the inferior border of the ribs above.

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  • 26. 

    Where do the external intercostals insert?

    • A.

      Superior vertebral border of scapula 

    • B.

      Central tendon 

    • C.

      Clavicle, acromion, scapula spine 

    • D.

      Superior border of rib below 

    Correct Answer
    D. Superior border of rib below 
    Explanation
    The external intercostals are muscles located between the ribs. They run obliquely downwards and forwards. They attach to the superior border of the rib below, which means that they insert onto the upper edge of the rib that is situated immediately below them. This attachment allows the external intercostals to elevate the rib cage during inspiration, aiding in the process of breathing.

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  • 27. 

    What is the action of the external intercostals?

    • A.

      Depresses ribs, decreases thorax lateral and anteroposterior

    • B.

      Elevates ribs, increases thorax lateral and anteroposterior 

    • C.

      Elevates scapula and rotates down 

    • D.

      Pulls central tendon increases thorax length 

    Correct Answer
    B. Elevates ribs, increases thorax lateral and anteroposterior 
    Explanation
    The action of the external intercostals is to elevate the ribs, which increases the lateral and anteroposterior dimensions of the thorax.

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  • 28. 

    What are the external intercostals innervated by? 

    • A.

      Accessory nerve 

    • B.

      Phrenic 

    • C.

      Dorsal scapular 

    • D.

      Intercostals 

    Correct Answer
    D. Intercostals 
    Explanation
    The external intercostals are innervated by the intercostal nerves. These nerves are located between the ribs and provide motor and sensory innervation to the muscles and skin of the intercostal spaces. The intercostal nerves originate from the spinal cord and run along the lower border of each rib. They are responsible for the contraction of the external intercostal muscles during inspiration, helping to elevate the ribs and expand the thoracic cavity.

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  • 29. 

    What is the action of the internal intercostals?

    • A.

      Elevates ribs, increases thorax lateral and anteroposterior 

    • B.

      Depresses ribs, decreases thorax lateral and anteroposterior 

    • C.

      Increases thorax length during inspiration 

    Correct Answer
    B. Depresses ribs, decreases thorax lateral and anteroposterior 
    Explanation
    The action of the internal intercostals is to depress the ribs, which means they pull the ribs downward. This action results in a decrease in the lateral and anteroposterior dimensions of the thorax.

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  • 30. 

    Where does the trapezius originate?

    • A.

      Spines t2-t5

    • B.

      Superior c4-c5

    • C.

      Occipital, spines c7-t12

    • D.

      Superior border of the rib below 

    Correct Answer
    C. Occipital, spines c7-t12
    Explanation
    The trapezius muscle originates from the occipital bone and the spinous processes of the seventh through twelfth thoracic vertebrae (C7-T12).

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  • 31. 

    Where does the trapezius insert?

    • A.

      Clavicle, acromion, scapula spine 

    • B.

      Humerus 

    • C.

      Superior vertebral border of scapula 

    Correct Answer
    A. Clavicle, acromion, scapula spine 
    Explanation
    The trapezius muscle inserts into the clavicle, acromion, and scapular spine. This means that the muscle attaches to these specific areas of the bones.

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  • 32. 

    What is the action of the trapezius?

    • A.

      Elevates clavicle and head

    • B.

      Adducts- rotates- elevates- depresses scapula 

    • C.

      Elevates scapula and rotates down 

    • D.

      A and B

    • E.

      All of the above 

    Correct Answer
    D. A and B
    Explanation
    The action of the trapezius muscle includes elevating the clavicle and head, as well as adducting, rotating, elevating, and depressing the scapula. Therefore, the correct answer is A and B.

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  • 33. 

    What innervates the trapezius?

    • A.

      Phrenic nerve

    • B.

      Medial/lateral pectoral 

    • C.

      Accessory, C3-C4 

    • D.

      Intercostals 

    Correct Answer
    C. Accessory, C3-C4 
    Explanation
    The trapezius muscle is innervated by the accessory nerve, specifically the branches originating from the C3 and C4 spinal nerves. The accessory nerve controls the movement of the trapezius muscle, which is responsible for various movements of the shoulder and neck, such as shrugging the shoulders and rotating the head.

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  • 34. 

    Where does the rhomboid major originate?

    • A.

      Superior c4-c5 

    • B.

      Occipital

    • C.

      Sternum

    • D.

      Spines t2-t5

    Correct Answer
    D. Spines t2-t5
    Explanation
    The rhomboid major muscle originates from the spines of the second to fifth thoracic vertebrae (T2-T5).

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  • 35. 

    Where does the rhomboid major insert?

    • A.

      Vertebral border of scapula below spine 

    • B.

      Inferior border of rib below 

    • C.

      Mastoid 

    • D.

      Xiphoid 

    Correct Answer
    A. Vertebral border of scapula below spine 
    Explanation
    The rhomboid major muscle inserts on the vertebral border of the scapula below the spine. This means that the muscle attaches to the scapula bone along its inner edge, specifically below the spine of the scapula.

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  • 36. 

    What is the action of rhomboid major?

    • A.

      Abduct scapula 

    • B.

      Laterally rotate scapula 

    • C.

      Adduct scapula and rotate down 

    • D.

      Medially rotate scapula 

    Correct Answer
    C. Adduct scapula and rotate down 
    Explanation
    The action of the rhomboid major is to adduct the scapula and rotate it downward. This means that the muscle pulls the scapula towards the midline of the body and also helps in rotating it downwards.

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  • 37. 

    What innervates the rhomboid major?

    • A.

      Accessory

    • B.

      Phrenic

    • C.

      Radial 

    • D.

      Dorsal scapular

    Correct Answer
    D. Dorsal scapular
    Explanation
    The rhomboid major muscle is innervated by the dorsal scapular nerve.

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  • 38. 

    WHere does the levator scapulae originate?

    • A.

      Spines t2-t5

    • B.

      Superior c4-c5 

    • C.

      Sternum, clavicle

    • D.

      Mastoid process

    Correct Answer
    B. Superior c4-c5 
    Explanation
    The levator scapulae muscle originates from the superior aspect of the C4-C5 vertebrae.

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  • 39. 

    Where does the levator scapulae insert?

    • A.

      Superior vertebral border of scapula 

    • B.

      Sternum, clavicle 

    • C.

      Mastoid 

    Correct Answer
    A. Superior vertebral border of scapula 
    Explanation
    The levator scapulae muscle inserts into the superior vertebral border of the scapula. This means that the muscle attaches to the upper border of the scapula bone, which is located on the back side of the shoulder. The levator scapulae muscle helps to elevate and rotate the scapula, allowing for movements of the shoulder and upper back.

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  • 40. 

    What is the action of the levator scapulae 

    • A.

      Adducts scapula and rotates down 

    • B.

      Elevates scapula and rotates down 

    • C.

      Elevates the head

    • D.

      Cervical flexion 

    Correct Answer
    B. Elevates scapula and rotates down 
    Explanation
    The levator scapulae is a muscle located in the neck and upper back region. Its main action is to elevate the scapula, which means it helps to lift the shoulder blade towards the ear. Additionally, it also helps in rotating the scapula downwards. Therefore, the correct answer is "elevates scapula and rotates down".

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  • 41. 

    Where does the pectoralis major originate?

    • A.

      Acromial extremity of clavicle 

    • B.

      Spines t7-t12

    • C.

      Clavicle, sternum, cartilage of ribs 2-6 

    • D.

      Supraspinous fossa of scapula 

    Correct Answer
    C. Clavicle, sternum, cartilage of ribs 2-6 
    Explanation
    The pectoralis major muscle originates from the clavicle, sternum, and cartilage of ribs 2-6.

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  • 42. 

    Where does the pectoralis major inserT?

    • A.

      Greater tubercle, bicip groove 

    • B.

      Deltoid tuberosity of humerus 

    • C.

      Greater tubercle of humerus 

    • D.

      Bicip groove

    Correct Answer
    A. Greater tubercle, bicip groove 
    Explanation
    The pectoralis major muscle inserts on the greater tubercle and bicipital groove of the humerus. This means that the muscle attaches to these specific points on the upper arm bone.

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  • 43. 

    What is the action of the pectoralis major?

    • A.

      Extends, laterally rotates humerus 

    • B.

      Flex, medially rotates, and adducts the humerus 

    • C.

      Flexes and supinates the forearm 

    • D.

      Extends humerus and forearm 

    Correct Answer
    B. Flex, medially rotates, and adducts the humerus 
    Explanation
    The pectoralis major is a large muscle located in the chest. It is responsible for multiple actions including flexing, medially rotating, and adducting the humerus. Flexion refers to bending the arm at the shoulder joint, medially rotation involves rotating the arm towards the midline of the body, and adduction is the movement of bringing the arm towards the center of the body. Therefore, the correct answer is flex, medially rotates, and adducts the humerus.

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  • 44. 

    What is the pectoralis major innervated by?

    • A.

      Thoracodorsal 

    • B.

      Lower subscapular 

    • C.

      Axillary 

    • D.

      Medial/lateral pectoral

    Correct Answer
    D. Medial/lateral pectoral
    Explanation
    The pectoralis major is innervated by the medial and lateral pectoral nerves. These nerves arise from the brachial plexus and provide motor innervation to the pectoralis major muscle. The thoracodorsal nerve innervates the latissimus dorsi muscle, the lower subscapular nerve innervates the subscapularis muscle, and the axillary nerve innervates the deltoid and teres minor muscles. Therefore, the correct answer is medial/lateral pectoral.

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  • 45. 

    Where does the latissumus dorsi originate?

    • A.

      Iliac crest 

    • B.

      Sternum, cartilage of ribs 2-6

    • C.

      Spines t7-t12, sacral crest, ilium

    • D.

      Scapula 

    Correct Answer
    C. Spines t7-t12, sacral crest, ilium
    Explanation
    The latissimus dorsi muscle originates from the spines of the 7th to 12th thoracic vertebrae, the sacral crest, and the ilium.

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  • 46. 

    Where does the latissumus dorsi insert?

    • A.

      Bicip groove 

    • B.

      Greater tubercle of humerus 

    • C.

      Bicipital aponeurosis 

    • D.

      Greater tubercle & bicip groove 

    Correct Answer
    A. Bicip groove 
    Explanation
    The latissimus dorsi muscle inserts into the bicipital groove. This is the narrow groove located on the anterior side of the humerus bone, specifically in the area where the tendon of the long head of the biceps brachii muscle runs. The latissimus dorsi muscle plays a role in movements of the shoulder joint, such as extension, adduction, and medial rotation.

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  • 47. 

    What is the action of latissimus dorsi?

    • A.

      Flexes and laterally rotates humerus 

    • B.

      Abducts and laterally rotates humerus 

    • C.

      Extends, adducts and medially rotates humerus 

    • D.

      Adducts and flexes humerus 

    Correct Answer
    C. Extends, adducts and medially rotates humerus 
    Explanation
    The latissimus dorsi muscle is responsible for extending, adducting, and medially rotating the humerus. This means that it helps to move the arm backward, bring it closer to the body, and rotate it inward.

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  • 48. 

    What is the latissimus dorsi innervated by?

    • A.

      Accessory nerve

    • B.

      Axillary nerve

    • C.

      Phrenic nerve

    • D.

      Thoracodorsal nerve

    Correct Answer
    D. Thoracodorsal nerve
    Explanation
    The latissimus dorsi muscle is innervated by the thoracodorsal nerve. This nerve originates from the brachial plexus and supplies motor innervation to the latissimus dorsi muscle. The thoracodorsal nerve runs along the posterior wall of the axilla and travels through the latissimus dorsi muscle, providing the necessary nerve impulses for muscle contraction and movement.

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  • 49. 

    Where does the deltoid originate?

    • A.

      Acromial extremity of clavicle, acromion, and spine of scapula 

    • B.

      Supraspinous fossa of scapula 

    • C.

      Inferior lateral border of scapula 

    • D.

      Supracond ridge 

    Correct Answer
    A. Acromial extremity of clavicle, acromion, and spine of scapula 
    Explanation
    The deltoid muscle originates from the acromial extremity of the clavicle, the acromion, and the spine of the scapula.

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  • 50. 

    Where does the deltoid insert?

    • A.

      Bicip groove 

    • B.

      Deltoid tuberosity of humerus 

    • C.

      Greater tubercle of humerus 

    • D.

      Tuberosity and coronoid process of ulna 

    Correct Answer
    B. Deltoid tuberosity of humerus 
    Explanation
    The deltoid muscle is a large, triangular muscle located on the upper arm. It inserts at the deltoid tuberosity of the humerus, which is a bony prominence on the lateral side of the humerus. This tuberosity provides a strong attachment point for the deltoid muscle, allowing it to exert force and participate in movements of the shoulder joint.

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Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 18, 2021
    Quiz Created by
    Alfredhook3
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