BIOD 151 Module 4: Exam Portage Learning Questions and Answers
2026 Practice Set
Module 4: The Skeletal System Practice Set
1. Which of the following is a key characteristic of bone classification?
• A. Short bones are irregular, such as the vertebrae.
• B. The carpals (wrist bones) are an example of short bones. ✅
• C. Flat bones are long and thin, such as the ulna.
• D. Sesamoid bones are always part of the axial skeleton.
Rationale: Short bones are cube-shaped, exemplified by the carpal bones of the wrist.
2. Which statement regarding bone surface features is CORRECT?
• A. A foramen is a projection for a tendon or ligament attachment.
• B. A process is a smooth, flat depression.
• C. A foramen is an opening or hole in a bone. ✅
• D. Bone surfaces are always entirely smooth.
Rationale: A foramen is an opening/hole; a process is a projection.
3. Which of the following is TRUE regarding the divisions of the skeleton?
• A. The appendicular skeleton includes the skull and laryngeal skeleton.
• B. The vertebral column is part of the appendicular skeleton.
• C. The two main divisions are the axial and appendicular skeletons. ✅
• D. The sternum is not part of the axial skeleton.
Rationale: The axial skeleton consists of the skull, vertebral column, and rib cage.
4. The adult human skull consists of how many total bones?
• A. 14
• B. 8
• C. 22 ✅
, • D. 30
Rationale: The skull comprises 22 bones: 8 cranial and 14 facial.
5. Which bone contains the foramen magnum, allowing the spinal cord to connect
to the brain?
• A. Frontal bone
• B. Occipital bone ✅
• C. Sphenoid bone
• D. Parietal bone
Rationale: The occipital bone features this large opening.
6. Which bone landmark is defined as a shallow depression?
• A. Fossa ✅
• B. Trochanter
• C. Tuberosity
• D. Spine
Rationale: A fossa is a depression; the others are types of bone projections.
7. Which vertebrae type is characterized by a "dens" process for head rotation?
• A. C1 (Atlas)
• B. C2 (Axis) ✅
• C. T1 (Thoracic)
• D. L5 (Lumbar)
Rationale: The Axis (C2) has the dens (odontoid process) for rotation.
Nursing Hero
8. How many pairs of ribs are classified as "True Ribs"?
• A. 5
• B. 7 ✅
• C. 10
, • D. 12
Rationale: Ribs 1-7 attach directly to the sternum.
9. The "soft spots" on an infant's skull that allow for brain growth are known as:
• A. Sutures
• B. Sinuses
• C. Fontanelles ✅
• D. Foramina
Rationale: Fontanelles allow the skull to compress during birth and the brain to grow.
10. Which bone is recognized as the longest and strongest in the human body?
• A. Humerus
• B. Tibia
• C. Femur ✅
• D. Fibula
Rationale: The femur is designed to support total body weight.
JoinFDNY
Vertebral Column & Thorax
11. Which region of the spine contains 5 fused vertebrae?
• A. Cervical
• B. Thoracic
• C. Lumbar
• D. Sacrum ✅
Rationale: The sacrum consists of 5 fused vertebrae in adults.
12. The specialized joint where the atlas (C1) meets the skull is called the:
• A. Atlanto-axial joint
• B. Atlanto-occipital joint ✅
• C. Temporomandibular joint
2026 Practice Set
Module 4: The Skeletal System Practice Set
1. Which of the following is a key characteristic of bone classification?
• A. Short bones are irregular, such as the vertebrae.
• B. The carpals (wrist bones) are an example of short bones. ✅
• C. Flat bones are long and thin, such as the ulna.
• D. Sesamoid bones are always part of the axial skeleton.
Rationale: Short bones are cube-shaped, exemplified by the carpal bones of the wrist.
2. Which statement regarding bone surface features is CORRECT?
• A. A foramen is a projection for a tendon or ligament attachment.
• B. A process is a smooth, flat depression.
• C. A foramen is an opening or hole in a bone. ✅
• D. Bone surfaces are always entirely smooth.
Rationale: A foramen is an opening/hole; a process is a projection.
3. Which of the following is TRUE regarding the divisions of the skeleton?
• A. The appendicular skeleton includes the skull and laryngeal skeleton.
• B. The vertebral column is part of the appendicular skeleton.
• C. The two main divisions are the axial and appendicular skeletons. ✅
• D. The sternum is not part of the axial skeleton.
Rationale: The axial skeleton consists of the skull, vertebral column, and rib cage.
4. The adult human skull consists of how many total bones?
• A. 14
• B. 8
• C. 22 ✅
, • D. 30
Rationale: The skull comprises 22 bones: 8 cranial and 14 facial.
5. Which bone contains the foramen magnum, allowing the spinal cord to connect
to the brain?
• A. Frontal bone
• B. Occipital bone ✅
• C. Sphenoid bone
• D. Parietal bone
Rationale: The occipital bone features this large opening.
6. Which bone landmark is defined as a shallow depression?
• A. Fossa ✅
• B. Trochanter
• C. Tuberosity
• D. Spine
Rationale: A fossa is a depression; the others are types of bone projections.
7. Which vertebrae type is characterized by a "dens" process for head rotation?
• A. C1 (Atlas)
• B. C2 (Axis) ✅
• C. T1 (Thoracic)
• D. L5 (Lumbar)
Rationale: The Axis (C2) has the dens (odontoid process) for rotation.
Nursing Hero
8. How many pairs of ribs are classified as "True Ribs"?
• A. 5
• B. 7 ✅
• C. 10
, • D. 12
Rationale: Ribs 1-7 attach directly to the sternum.
9. The "soft spots" on an infant's skull that allow for brain growth are known as:
• A. Sutures
• B. Sinuses
• C. Fontanelles ✅
• D. Foramina
Rationale: Fontanelles allow the skull to compress during birth and the brain to grow.
10. Which bone is recognized as the longest and strongest in the human body?
• A. Humerus
• B. Tibia
• C. Femur ✅
• D. Fibula
Rationale: The femur is designed to support total body weight.
JoinFDNY
Vertebral Column & Thorax
11. Which region of the spine contains 5 fused vertebrae?
• A. Cervical
• B. Thoracic
• C. Lumbar
• D. Sacrum ✅
Rationale: The sacrum consists of 5 fused vertebrae in adults.
12. The specialized joint where the atlas (C1) meets the skull is called the:
• A. Atlanto-axial joint
• B. Atlanto-occipital joint ✅
• C. Temporomandibular joint
