BIOL 2457 Skeletal System Questions
with Correct Answers 2025/2026
1. What is skeleton made out of? CORRECT ANSWER bones and cartilage
2. Where are hyaline cartilage found? CORRECT ANSWER articular, costal,
respiratory, and nasal cartilages
3. Where are elastic cartilage found? CORRECT ANSWER nose, external ear, and epiglottis
4. Where are fibrocartilage found? CORRECT ANSWER intervertebral discs and
pubic symphysis
5. What are bones made of? CORRECT ANSWER Calcified (calciumsalts) matrix
with manycollagen fibers
6. The skeletal system (bones, joints, cartilages, ligaments) is made up of how much body
mass? CORRECT ANSWER 20%
7. Axial Skeleton CORRECT ANSWER Cranial, Vertebral, and ribs
8. Appendicular Skeleton CORRECT ANSWER Limbs, pelvic girdle
9. Cartilage are in what type of area? CORRECT ANSWER Isolated areas
10. Ligaments attach to what? CORRECT ANSWER connect bones and reinforce joint
, 11. Joints allow for what? CORRECT ANSWER mobility
12. How many bones in the body? CORRECT ANSWER 206
13. Cranial bones CORRECT ANSWER Part of the axial skeleton; enclose/protect the
brain and contain attachment sites for muscles of the head and neck (8)
14. Facial bones CORRECT ANSWER Part of the axial skeleton; framework of the
face; contain cavities for visual, gustatory, and olfactory structures; provide
openings for air/food passage; secure teeth; anchor facial muscles (14)
15. All bones of the skull are firmly connected by sutures, except what bone?
CORRECT ANSWER Mandible
16. Cavities in the axial skeleton CORRECT ANSWER cranial cavity, orbits, nasal cavity,
oral cavity, sinuses, middle/inner ear cavities
17. Cranial bones (8) CORRECT ANSWER 2x parietal, 2x temporal, frontal,
occipital, sphenoid, ethmoid
18. 4 major sutures CORRECT ANSWER sagittal, lambdoid, coronal, squamous
19. 14 facial bones CORRECT ANSWER 2x maxillae, 2x zygomatic, 2x nasal, 2x lacrimal,
2x palantine, 2x nasal conchae, mandible, vomer
20. Hyoid bone CORRECT ANSWER Not part of the skull, but lies just below the
mandible; only bone that does not articulate with another bone
with Correct Answers 2025/2026
1. What is skeleton made out of? CORRECT ANSWER bones and cartilage
2. Where are hyaline cartilage found? CORRECT ANSWER articular, costal,
respiratory, and nasal cartilages
3. Where are elastic cartilage found? CORRECT ANSWER nose, external ear, and epiglottis
4. Where are fibrocartilage found? CORRECT ANSWER intervertebral discs and
pubic symphysis
5. What are bones made of? CORRECT ANSWER Calcified (calciumsalts) matrix
with manycollagen fibers
6. The skeletal system (bones, joints, cartilages, ligaments) is made up of how much body
mass? CORRECT ANSWER 20%
7. Axial Skeleton CORRECT ANSWER Cranial, Vertebral, and ribs
8. Appendicular Skeleton CORRECT ANSWER Limbs, pelvic girdle
9. Cartilage are in what type of area? CORRECT ANSWER Isolated areas
10. Ligaments attach to what? CORRECT ANSWER connect bones and reinforce joint
, 11. Joints allow for what? CORRECT ANSWER mobility
12. How many bones in the body? CORRECT ANSWER 206
13. Cranial bones CORRECT ANSWER Part of the axial skeleton; enclose/protect the
brain and contain attachment sites for muscles of the head and neck (8)
14. Facial bones CORRECT ANSWER Part of the axial skeleton; framework of the
face; contain cavities for visual, gustatory, and olfactory structures; provide
openings for air/food passage; secure teeth; anchor facial muscles (14)
15. All bones of the skull are firmly connected by sutures, except what bone?
CORRECT ANSWER Mandible
16. Cavities in the axial skeleton CORRECT ANSWER cranial cavity, orbits, nasal cavity,
oral cavity, sinuses, middle/inner ear cavities
17. Cranial bones (8) CORRECT ANSWER 2x parietal, 2x temporal, frontal,
occipital, sphenoid, ethmoid
18. 4 major sutures CORRECT ANSWER sagittal, lambdoid, coronal, squamous
19. 14 facial bones CORRECT ANSWER 2x maxillae, 2x zygomatic, 2x nasal, 2x lacrimal,
2x palantine, 2x nasal conchae, mandible, vomer
20. Hyoid bone CORRECT ANSWER Not part of the skull, but lies just below the
mandible; only bone that does not articulate with another bone
