ITEC A&p (Skeletal) 2 Q&a
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Questions and Answers
- 1.
What is the difference between compact bone and spongy bone?
- A.
They have different bone marrow.
- B.
They are made of different materials.
- C.
They have different sizes of bone cells.
- D.
They have different arrangement of bone cells.
Correct Answer
D. They have different arrangement of bone cells.Explanation
The correct answer is that compact bone and spongy bone have different arrangements of bone cells. Compact bone is dense and made up of tightly packed osteons, while spongy bone has a more porous structure with trabeculae and spaces filled with red bone marrow. This difference in arrangement allows compact bone to provide strength and support, while spongy bone helps with shock absorption and the production of blood cells.Rate this question:
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- 2.
What is a joint?
- A.
A hinge
- B.
A ball and socket
- C.
The place where two bones are joined
- D.
The place where tendons are fastened together
Correct Answer
C. The place where two bones are joinedExplanation
A joint is the location where two bones come together. It allows for movement and flexibility in the body.Rate this question:
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- 3.
How many vertebrae form the spine
- A.
33
- B.
37
- C.
29
- D.
34
Correct Answer
A. 33Explanation
The spine is made up of a series of small bones called vertebrae. These vertebrae are stacked on top of each other and provide support and protection for the spinal cord. The correct answer is 33 because an adult human spine typically consists of 33 vertebrae. There are 7 cervical vertebrae in the neck, 12 thoracic vertebrae in the upper back, 5 lumbar vertebrae in the lower back, 5 sacral vertebrae fused together in the pelvis, and 4 coccygeal vertebrae at the base of the spine.Rate this question:
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- 4.
Which is NOT a good example of a long bone
- A.
Ribs
- B.
Femur
- C.
Radius
- D.
Metatarsals
Correct Answer
A. RibsExplanation
The ribs are not a good example of a long bone because they are flat bones, not elongated like long bones. Long bones, such as the femur, radius, and metatarsals, are characterized by their elongated shape and have a shaft with expanded ends. Ribs, on the other hand, are flat and curved bones that protect the organs of the thoracic cavity.Rate this question:
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- 5.
Where would I find the occipital bone
- A.
In the orbital cavity
- B.
The jaw
- C.
The ankle
- D.
Back of the cranium
Correct Answer
D. Back of the craniumExplanation
The occipital bone is located at the back of the cranium. It forms the lower part of the back of the skull and helps protect the brain. It is connected to other bones of the skull and provides support and stability to the head.Rate this question:
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- 6.
What is the cause of osteoperosis
- A.
Growing old
- B.
Calcium deficiency
- C.
Stress
- D.
Autoimmune disease
Correct Answer
B. Calcium deficiencyExplanation
Osteoporosis is a condition characterized by weak and brittle bones. Calcium deficiency is a known cause of osteoporosis because calcium is an essential mineral for maintaining bone health. When the body lacks calcium, it starts to draw calcium from the bones, making them weaker over time. This can lead to an increased risk of fractures and other bone-related problems. While growing old and stress can contribute to the development of osteoporosis, they are not the primary cause. Autoimmune diseases can also affect bone health, but they are not directly linked to osteoporosis.Rate this question:
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- 7.
Where would be a good example of a pivot joint
- A.
Between the atlas and axis, cervical vertebrae
- B.
Elbow
- C.
Between the carpals and tarsals
- D.
Hip
Correct Answer
A. Between the atlas and axis, cervical vertebraeExplanation
A pivot joint allows for rotation around a central axis. The atlas and axis are two specific cervical vertebrae in the neck that form a pivot joint. This joint allows for the rotation of the head, such as when shaking the head "no." Therefore, the atlas and axis in the cervical vertebrae would be a good example of a pivot joint.Rate this question:
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- 8.
which of the following is an example of a short bone?
- A.
Trapezoid
- B.
Zygomatic
- C.
temporal
- D.
hyoid
Correct Answer
A. TrapezoidExplanation
The trapezoid is an example of a short bone. Short bones are generally cube-shaped or have a similar length and width, and they provide support and stability to the body. The trapezoid bone is located in the wrist and is one of the eight carpal bones. It is small and roughly quadrilateral in shape, resembling a trapezoid. Therefore, the trapezoid fits the criteria of a short bone and is the correct answer.Rate this question:
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- 9.
which of the following is an example of a flat bone?
- A.
Scapula
- B.
Patella
- C.
Clavicle
- D.
Capitate
Correct Answer
A. ScapulaExplanation
The scapula is an example of a flat bone. Flat bones are thin and flat in shape, providing protection and serving as a site for muscle attachment. The scapula, also known as the shoulder blade, is a large, triangular-shaped flat bone located on the upper back. It plays a crucial role in the movement and stability of the shoulder joint.Rate this question:
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- 10.
. What is the action of the serratus anterior?
- A.
It protracts (abduction) and rotates the scapula
- B.
It elevates and braces the shoulders
- C.
It flexes and medially rotates the arm at the shoulder
- D.
It extends and abducts the arm at the shoulder
Correct Answer
A. It protracts (abduction) and rotates the scapulaExplanation
The serratus anterior muscle is responsible for protracting (abducting) and rotating the scapula. This means that it helps to move the scapula away from the midline of the body and also helps to rotate it. This action is important for various movements of the shoulder, such as reaching forward or pushing objects away.Rate this question:
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- 11.
what is meant by the insertion of a muscle?
- A.
the attachment to bone at the moving end of a muscle
- B.
The thickest part of a muscle
- C.
The attachment to bone at the fixed end of a muscle
- D.
The degree of contraction of muscle fibres
Correct Answer
A. the attachment to bone at the moving end of a muscleExplanation
The insertion of a muscle refers to the attachment point of the muscle to the bone at its moving end. This is where the muscle exerts its force to create movement. It is the opposite of the origin, which is the attachment point at the fixed end of the muscle.Rate this question:
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- 12.
Which of the following is the only moveable bone in the skull?
- A.
Maxilla
- B.
Parietal
- C.
Temporal
- D.
Mandible
Correct Answer
D. MandibleExplanation
The mandible is the only moveable bone in the skull. It is commonly known as the jawbone and is connected to the skull by a joint called the temporomandibular joint (TMJ). This joint allows the mandible to move up and down, as well as side to side, enabling actions such as chewing, speaking, and yawning. The other options listed (maxilla, parietal, and temporal) are all bones in the skull, but they are not moveable.Rate this question:
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- 13.
. What is the name of the bone that forms the kneecap?
- A.
The femur
- B.
The clavicle
- C.
The sternum
- D.
The patella
Correct Answer
D. The patellaExplanation
The patella is the correct answer because it is the bone that forms the kneecap. It is a small, flat, triangular bone located in front of the knee joint. The patella plays a crucial role in the movement of the knee joint and helps to protect the underlying structures such as the knee joint and the quadriceps tendon.Rate this question:
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- 14.
What part of the body does the appendicular skeleton support?
- A.
Shoulder girdle, upper limbs, the pelvic girdle and lower limbs
- B.
Torso
- C.
Shoulder girdle and pelvic girdle
- D.
Head, neck and torso
Correct Answer
A. Shoulder girdle, upper limbs, the pelvic girdle and lower limbsExplanation
The appendicular skeleton supports the shoulder girdle, upper limbs, the pelvic girdle, and lower limbs.Rate this question:
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- 15.
. Which of the following is NOT a function of the skeletal system?
- A.
To store calcium
- B.
To store hormones
- C.
To form erythrocytes in bone marrow
- D.
To form joints to provide movement
Correct Answer
B. To store hormonesExplanation
The skeletal system is responsible for providing support and structure to the body, protecting internal organs, producing blood cells in the bone marrow, and storing calcium. However, it is not involved in the storage of hormones. Hormones are produced by various glands in the body, such as the endocrine glands, and are responsible for regulating various bodily functions. Therefore, the correct answer is "To store hormones."Rate this question:
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- 16.
The scapula falls under which category of bone?
- A.
Irregular bones
- B.
Flat bones
- C.
Short bones
- D.
Sesamoid bones
Correct Answer
B. Flat bonesExplanation
The scapula is a flat bone. Flat bones are thin, flat, and often curved bones that provide protection and support. They are found in areas such as the skull, ribs, and shoulder blades. The scapula, also known as the shoulder blade, is a large, triangular-shaped flat bone located on the back of the shoulder. It helps to connect the upper arm bone with the clavicle and provides attachment points for various muscles involved in shoulder movement.Rate this question:
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- 17.
Which of the following is an example of a long bone?
- A.
Carpals
- B.
Ribs
- C.
Ethmoid
- D.
Phalanges
Correct Answer
D. PhalangesExplanation
Phalanges is an example of a long bone because it refers to the bones in the fingers and toes, which are elongated in shape. Long bones are characterized by their cylindrical shape, with a shaft (diaphysis) and two ends (epiphyses). They provide support, mobility, and strength to the body. Carpal bones are found in the wrist and are classified as short bones. Ribs are flat bones, and the ethmoid bone is a cranial bone.Rate this question:
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- 18.
Which of the following is not a function of the skeleton?
- A.
Movement
- B.
Heat absorption
- C.
Protection
- D.
Support
Correct Answer
B. Heat absorptionExplanation
The skeleton's main functions include support, protection, and movement. However, heat absorption is not a function of the skeleton. The skeleton does not directly play a role in regulating body temperature or absorbing heat. This function is primarily carried out by other systems in the body, such as the circulatory and respiratory systems.Rate this question:
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- 19.
Haversian canals can be described as:
- A.
Small channels running lengthways
- B.
Small channels running lengthways through compact bone
- C.
Small channels running lengthways through cancellous bone
- D.
Channels which are part of your lymphatic system
Correct Answer
B. Small channels running lengthways through compact boneExplanation
Haversian canals are small channels that run lengthways through compact bone. These canals contain blood vessels, nerves, and connective tissue, and they play a crucial role in the transportation of nutrients and waste products within the bone. Compact bone is dense and strong, providing support and protection to the body, and the presence of Haversian canals allows for efficient communication and nourishment of the bone cells.Rate this question:
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- 20.
Which bones form the bridge of the nose?
- A.
Ethmoid bones
- B.
Nasal bones
- C.
Vomer
- D.
Lacrimal
Correct Answer
B. Nasal bonesExplanation
The bridge of the nose is formed by the nasal bones. These bones are located in the upper part of the nose and are responsible for providing structure and support to the nasal bridge. They contribute to the overall shape and appearance of the nose. The ethmoid bones, vomer, and lacrimal bones are not directly involved in forming the bridge of the nose.Rate this question:
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- 21.
What anatomical direction describes above or towards the upper part of the body?
- A.
External
- B.
Lateral
- C.
Distal
- D.
Superior
Correct Answer
D. SuperiorExplanation
The anatomical direction that describes above or towards the upper part of the body is "superior". This term is used to indicate a position that is higher or above another structure or point of reference in the body. In anatomical terms, superior refers to a structure being closer to the head or further away from the feet.Rate this question:
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- 22.
What is the foramen magnus?
- A.
An exaggerated inward curvature of the spine
- B.
A large opening in the occipital bone through which the spinal cord passes
- C.
An opening for the passage of the nasolacrimal duct
- D.
A large bone which forms the chin and side of the face
Correct Answer
B. A large opening in the occipital bone through which the spinal cord passesExplanation
The foramen magnus is a large opening located in the occipital bone at the base of the skull. This opening serves as a passageway for the spinal cord to connect with the brainstem.Rate this question:
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- 23.
Which of the following is an example of a long bone?
- A.
Carpals
- B.
Ribs
- C.
Ethmoid
- D.
Femur
Correct Answer
D. FemurExplanation
The femur is an example of a long bone because it is one of the longest and strongest bones in the human body. Long bones are characterized by their elongated shape and consist of a shaft (diaphysis) and two ends (epiphyses). They provide support, mobility, and protection to the body. The carpals are small bones in the wrist, the ribs are flat bones that protect the chest, and the ethmoid is a bone in the skull.Rate this question:
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- 24.
How many bones does the lumbar vertebrae have?
- A.
12
- B.
7
- C.
4
- D.
5
Correct Answer
D. 5Explanation
The lumbar vertebrae are the five largest and strongest vertebrae in the lower back region of the spine. Each lumbar vertebra has a body, a vertebral arch, and several processes. Therefore, the correct answer is 5, as there are five individual lumbar vertebrae in the human body.Rate this question:
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- 25.
. The wrist bones are known as?
- A.
Phalanges
- B.
Metacarpals
- C.
Tarsals
- D.
Carpals
Correct Answer
D. CarpalsExplanation
The wrist bones are known as carpals. Carpals are a group of eight small bones located in the wrist joint. They are arranged in two rows of four bones each. These bones provide stability and support to the wrist joint, allowing for movement and flexibility. The carpals also connect the hand to the forearm bones, the radius and ulna.Rate this question:
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- 26.
Which type of joint is the least moveable of all the joints?
- A.
Hinge joint
- B.
Ball and socket
- C.
Gliding
- D.
Saddle
Correct Answer
C. GlidingExplanation
The gliding joint is the least moveable of all the joints because it allows for only slight, back-and-forth movements. This type of joint is found in the wrists and ankles, where bones glide against each other. Unlike hinge joints and ball and socket joints, which allow for a wider range of motion, the gliding joint has limited mobility. The saddle joint, on the other hand, allows for more movement than the gliding joint, as it allows bones to move in multiple directions.Rate this question:
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- 27.
How many bones does the cervical vertebrae have?
- A.
12
- B.
5
- C.
4
- D.
7
Correct Answer
D. 7Explanation
The cervical vertebrae are the seven smallest and uppermost vertebrae in the vertebral column. They are located in the neck region and are responsible for supporting the head and allowing for its movement. Therefore, the correct answer is 7.Rate this question:
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- 28.
An exaggerated inward curvature of the spine is known as:
- A.
Lordosis
- B.
Scoliosis
- C.
Kyphosis
- D.
Impacted curvature
Correct Answer
A. LordosisExplanation
Lordosis is the correct answer because it refers to an exaggerated inward curvature of the spine, commonly known as "swayback." This condition causes the lower back to curve excessively, leading to a noticeable arch in the spine. Lordosis can be caused by various factors, including poor posture, obesity, pregnancy, or certain medical conditions. It can result in discomfort, pain, and difficulty in movement. Treatment options for lordosis may include physical therapy, exercises to strengthen the core muscles, and in severe cases, surgery.Rate this question:
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- 29.
The innominate bones are:
- A.
" Sacrum and coccyx
- B.
" Femur, patella and tibia
- C.
" Illium, ischium and pubis
- D.
" Clavicle and scapula
Correct Answer
C. " Illium, ischium and pubisExplanation
The innominate bones refer to the hip bones, which consist of the ilium, ischium, and pubis. These three bones come together to form the pelvis. The sacrum and coccyx are part of the vertebral column, while the femur, patella, and tibia are bones of the lower limb. The clavicle and scapula are bones of the shoulder girdle. Therefore, the correct answer is "Illium, ischium, and pubis" as these three bones make up the innominate bones or hip bones.Rate this question:
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- 30.
The elbow joint is
- A.
Pivot
- B.
Fixed
- C.
Hinge
- D.
Gliding
Correct Answer
C. HingeExplanation
The correct answer is hinge because the elbow joint allows movement in only one plane, similar to a door hinge. It enables flexion and extension movements, allowing the arm to bend and straighten. The other options, pivot, fixed, and gliding, do not accurately describe the type of movement allowed at the elbow joint.Rate this question:
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Aug 18, 2023Quiz Edited by
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