Animal Anatomy And Physiology - Muscles
Here is a nice 50-questions quiz on animal muscles both as gross anatomy and in a microscope. This quiz; however, will focus on the gross anatomy of muscles.
Questions and Answers
- 1.
Skeletal muscles move what?
Explanation
Skeletal muscles are responsible for moving bones. They are attached to bones via tendons and when they contract, they pull on the bones, causing movement. This movement allows us to perform various activities such as walking, running, and lifting objects. Without the contraction of skeletal muscles, our bones would not be able to move, resulting in immobility.Rate this question:
- 2.
Skeletal muscles generate heat.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Skeletal muscles generate heat because they are responsible for the majority of body heat production. When muscles contract and relax, they produce energy through metabolic processes, which results in the generation of heat. This heat helps to maintain the body's temperature and is especially important during physical activity or in cold environments.Rate this question:
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- 3.
Nuclei of skeletal muscles.
- A.
3
- B.
5
- C.
Multiple
- D.
Single
- E.
None
Correct Answer
C. MultipleExplanation
The nuclei of skeletal muscles are multiple. This means that each muscle fiber contains multiple nuclei, which are located on the periphery of the cell. This is in contrast to other cell types, where the nucleus is typically located in the center of the cell. The multiple nuclei in skeletal muscle fibers are necessary for the maintenance and repair of the muscle tissue, as they provide the necessary genetic material and cellular machinery for protein synthesis and muscle growth.Rate this question:
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- 4.
What is the #1 muscle?
- A.
Cutaneous Trunci muscle
- B.
Superficial Cervical Fasciae
- C.
Platysma muscle
- D.
Trapezius Muscle
Correct Answer
C. Platysma muscleExplanation
The Platysma muscle is the correct answer because it is the #1 muscle being referred to in the question. The other options mentioned are not the #1 muscle. The Platysma muscle is a thin muscle that stretches from the chest to the jaw and is responsible for various facial expressions, including lowering the jaw and lip movements.Rate this question:
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- 5.
What is muscle #3?
- A.
Superficial Brachial Fasciae
- B.
Superficial Gluteal Fasciae
- C.
Deltoid Muscle
- D.
Omotransversarius Muscle
Correct Answer
A. Superficial Brachial FasciaeExplanation
The correct answer is Superficial Brachial Fasciae.Rate this question:
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- 6.
What is muscle #2?
Correct Answer
External jugular veinExplanation
Muscle #2 is not mentioned in the question, so it is not possible to provide an explanation for the correct answer.Rate this question:
- 7.
Muscle #4?
Correct Answer
Cephalic veinExplanation
The correct answer is the cephalic vein. The cephalic vein is a major blood vessel located in the upper arm and forearm. It is often used for venipuncture or intravenous therapy. It runs along the lateral side of the arm, starting from the hand, passing through the forearm, and ending in the shoulder region. It is easily visible and palpable, making it a common choice for medical procedures.Rate this question:
- 8.
What is muscle #1?
- A.
Latissimus dorsi muscle
- B.
Temporalis muscle
- C.
External columnar muscle
- D.
Thoracolumbar fasciae
Correct Answer
D. Thoracolumbar fasciaeExplanation
The correct answer is Thoracolumbar fasciae. The thoracolumbar fasciae is a group of connective tissues that provide support and stability to the muscles and organs in the lower back and abdomen. It helps to maintain proper posture and allows for movement and flexibility in the trunk region. The other options, Latissimus dorsi muscle, Temporalis muscle, and External columnar muscle, are specific muscles in the body and are not the correct answer to the question.Rate this question:
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- 9.
Muscle #10?
- A.
Masseter muscle
- B.
Temporalis muscle
- C.
Sterno-occipitalis muscle
- D.
Parotid salivary gland
Correct Answer
A. Masseter muscleExplanation
The masseter muscle is the correct answer because it is one of the main muscles involved in chewing. It is located in the jaw and helps to close the mouth and move the jaw up and down. The temporalis muscle is also involved in chewing, but the masseter muscle is more commonly associated with this function. The sterno-occipitalis muscle is located in the neck and is not directly involved in chewing. The parotid salivary gland is responsible for producing saliva and is not a muscle.Rate this question:
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- 10.
Muscle #3 is........
Correct Answer
Deltoid muscle
Spinous part of deltoid muscleExplanation
The correct answer is Deltoid muscle, Spinous part of deltoid muscle. The deltoid muscle is a large muscle located in the shoulder region. It is responsible for the abduction, flexion, and extension of the arm. The spinous part of the deltoid muscle refers to the posterior or back part of the muscle. It helps in the extension and rotation of the arm.Rate this question:
- 11.
What is number 5?
Correct Answer
Cutaneous trunci muscle - 12.
What is number 6?
Correct Answer
Superficial gluteal fasciae - 13.
What is number 7?
Correct Answer
Superficial femoral fasciae - 14.
What is number 8?
Correct Answer
Lateral Saphenous vein
saphenous veinExplanation
The correct answer is "Lateral Saphenous vein, saphenous vein". The question is asking for the name of a specific vein, and the correct answer is providing two options: the Lateral Saphenous vein and the saphenous vein. These are both veins in the human body, and either one could be the correct answer depending on the context of the question.Rate this question:
- 15.
Number 22 is the deep pectoral muscle.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The given statement is true. Number 22 refers to the deep pectoral muscle.Rate this question:
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- 16.
Numbers 15-17 is Brachiocephalicus muscle: Cleidocephalicus cervical part Cleidobrachialis
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The correct answer is true. The numbers 15-17 refer to the brachiocephalicus muscle, specifically its cervical part.Rate this question:
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- 17.
Muscle #13 is....
Correct Answer
masseter muscle
masseterExplanation
The correct answer is masseter muscle. The masseter muscle is one of the muscles responsible for chewing and is located in the jaw area. It is a powerful muscle that helps in closing the jaw and is important for biting and grinding food.Rate this question:
- 18.
What is number 1? It starts with p.....
Correct Answer
parotid salivary gland - 19.
What is muscle # 19?
- A.
Triceps brachii muscle
- B.
Deltoideus muscle: acromial part
- C.
External brachii fasciae
- D.
Superficial brachii fasciae
Correct Answer
A. Triceps brachii muscleExplanation
The correct answer is Triceps brachii muscle. This muscle is located in the upper arm and is responsible for extending the forearm at the elbow joint. It has three heads - the long head, lateral head, and medial head, hence the name "triceps". The triceps brachii muscle is important for movements such as pushing, throwing, and punching.Rate this question:
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- 20.
What is muscle #14?
- A.
Brachiocephalicus muscle
- B.
Sterno-occipitalis muscle
- C.
Sternocephalus muscle
- D.
Cleidocephalicus
Correct Answer
B. Sterno-occipitalis muscleExplanation
The correct answer is Sterno-occipitalis muscle. This muscle is located in the neck region and connects the sternum to the occipital bone. It helps in movements of the head and neck, such as flexion and extension.Rate this question:
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- 21.
What is structure number 1?
Correct Answer
Parotid salivary glandExplanation
The structure number 1 refers to the parotid salivary gland.Rate this question:
- 22.
Number 15 is the area for temporal muscles.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The explanation for the given correct answer is that number 15 refers to the area for temporal muscles. This means that the statement "Number 15 is the area for temporal muscles" is true.Rate this question:
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- 23.
Choose the correct muscle name for muscle # 4.
- A.
Sternocephalicus muscle sterno-occipitalis portion
- B.
Parotid duct muscle
- C.
Trapezius
- D.
Cleidocephalicus muscle
Correct Answer
D. Cleidocephalicus muscleExplanation
The correct muscle name for muscle #4 is Cleidocephalicus muscle.Rate this question:
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- 24.
What is number 7?
- A.
Parotid lymph node
- B.
Molar salivary gland
- C.
Mandibular lymph nodes
- D.
Masseter lymph nodes
Correct Answer
C. Mandibular lymph nodes -
- 25.
What is number 12?
Correct Answer
Facial vein - 26.
What is number 10?
Correct Answer
Parotid ductExplanation
The parotid duct is a tube-like structure that carries saliva from the parotid gland to the mouth. It is located in the cheek and opens into the mouth opposite the upper second molar tooth. This duct plays a crucial role in the production and delivery of saliva, which aids in the digestion of food and keeps the mouth moist.Rate this question:
- 27.
What is that green structure labelled number 11?
Correct Answer
Molar salivary glandExplanation
The green structure labelled number 11 is the molar salivary gland.Rate this question:
- 28.
Number 1 is the median vein.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
It is the median nerve!Rate this question:
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- 29.
Number 2 is known as the Accessory carpal bone.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The Accessory carpal bone is indeed known as Number 2.Rate this question:
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- 30.
What is number 3?
- A.
Tendons of deep digital flexor muscle
- B.
Ligaments of deep digital flexor muscle
- C.
Cut tendons of the superficial digital flexor muscle
- D.
Digital annular ligaments
Correct Answer
D. Digital annular ligamentsExplanation
The digital annular ligaments are structures in the horse's limb that hold the tendons in place as they pass over the back of the fetlock joint. These ligaments create a tunnel-like structure that helps to keep the tendons in proper alignment and prevent them from bowing or deviating from their intended path.Rate this question:
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- 31.
On the top right, there is the "Deep digital flexor muscle." What is number 4, 5, and 6? (Seperate by a space)
Correct Answer
Deep digital flexor
Deep digital flexor Deep digital flexor Deep digital flexor
Deep digital flexorsExplanation
Trick question!Rate this question:
- 32.
What is # 7?
Correct Answer
Tendons of deep digital flexor muscle
tendons of deep digital flexorExplanation
The correct answer is tendons of deep digital flexor muscle and tendons of deep digital flexor. These are referring to the tendons of a specific muscle called the deep digital flexor, which is responsible for flexing the digits or fingers. The tendons of this muscle are important for movement and control of the fingers.Rate this question:
- 33.
What fits this definition best? " A strong band of fascia that holds the cranial tibial muscle in position. "
Correct Answer
Extensor retinaculumExplanation
The extensor retinaculum is a strong band of fascia that holds the cranial tibial muscle in position. It acts as a support structure, keeping the muscle in place and preventing it from moving or shifting during movement. This helps to maintain stability and proper functioning of the muscle.Rate this question:
- 34.
What is #1?
Correct Answer
Common digital extensor muscleExplanation
The correct answer is the Common digital extensor muscle.Rate this question:
- 35.
What is number 2?
Correct Answer
Lateral digital extensor tendons - 36.
What is number 1?
Correct Answer
Internal abdominal oblique muscle
Internal abdominal oblique - 37.
What is number 2?
Correct Answer
Sartorius muscle - 38.
What is number 3?
Correct Answer
Gluteal fasciaExplanation
The correct answer is Gluteal fascia. The gluteal fascia is a layer of connective tissue that covers the gluteal muscles, providing support and protection. It helps to maintain the shape and structure of the buttocks and plays a role in the movement and stability of the hip joint.Rate this question:
- 39.
Number 4 is the "Gluteofemoralis muscle"
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The given statement is true. Number 4 is indeed the "Gluteofemoralis muscle".Rate this question:
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- 40.
What is number 5?
Correct Answer
Tensor fasciae latae - 41.
What is number 6?
Correct Answer
Semitendinosus muscle - 42.
Which contractile protein filaments make up the dark bands of skeletal muscle cells?
Correct Answer
A bandExplanation
The A band is the correct answer because it is the region of the skeletal muscle cell where thick filaments, composed of the contractile protein myosin, are found. These thick filaments overlap with thin filaments, made up of the contractile protein actin, which are found in the lighter regions of the muscle cell called the I bands. Therefore, the A bands are responsible for the dark bands observed in skeletal muscle cells.Rate this question:
- 43.
Which contractile protein filaments make up the light bands?
- A.
Z band
- B.
A band
- C.
I band
- D.
Sarcomeres
Correct Answer
C. I bandExplanation
The I band is the correct answer because it is the region of the sarcomere that contains only thin filaments. The I band appears lighter under a microscope due to the absence of thick filaments.Rate this question:
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- 44.
Complete the paragraph: A sarcomere is the area from one___ line to the next ___ line and is the basic contracting unit of skeletal muscle. Many sarcomeres lined up end-to-end form a ______. Each individual sarcomere in a myofibril only shortens slightly when the fiber is stimulated to contract, but when all the sarcomere contractions are added together, the muscle fiber ______ considerably.
- A.
Z line to the next Z line, myofibril, shortens
- B.
Z line to the next Z line, myofibril, elongates
- C.
I line to the next A line, myofibril, shortens
- D.
A line to the next I line, fascicles, shortens
- E.
Z line to the next Z line, fascicles, shortens
- F.
I line to the next Z line, fascicles, elongates
Correct Answer
A. Z line to the next Z line, myofibril, shortensExplanation
A sarcomere is the area from one Z line to the next Z line and is the basic contracting unit of skeletal muscle. Many sarcomeres lined up end-to-end form a myofibril. Each individual sarcomere in a myofibril only shortens slightly when the fiber is stimulated to contract, but when all the sarcomere contractions are added together, the muscle fiber shortens considerably.Rate this question:
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- 45.
What ion, released from the sarcoplasmic reticulum by a nerve impulse, starts the contraction process in a muscle fiber?
Correct Answer
CalciumExplanation
When a nerve impulse reaches a muscle fiber, it triggers the release of calcium ions from the sarcoplasmic reticulum. Calcium ions are crucial for muscle contraction as they bind to proteins called troponin, causing a conformational change that allows myosin heads to bind to actin filaments. This interaction between myosin and actin initiates the sliding of the filaments, leading to muscle contraction. Therefore, calcium ions play a vital role in starting the contraction process in a muscle fiber.Rate this question:
- 46.
What molecules in muscle act as the “batteries” to power the sliding of the actin and myosin filaments?
Correct Answer
ATP
Adenosine triphosphate
adenosine triphosphate (ATP)Explanation
ATP, or adenosine triphosphate, is the molecule that acts as the "batteries" to power the sliding of the actin and myosin filaments in muscle. ATP is a high-energy molecule that provides the necessary energy for muscle contraction. When ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, energy is released, which is then used to power the sliding of the actin and myosin filaments, leading to muscle contraction. Therefore, ATP is essential for the functioning of muscles.Rate this question:
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.png "Number 4 is the \"Gluteofemoralis muscle\"")
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