Skeletal System Lab

Question 1

Skeletons job

Answer 1

Protection
Mineral storage and acid base homeostasis
Blood cell formation
Fat storage
Movement
Support

Question 2

Protection

Answer 2

skeleton protects vital organs

Question 3

Mineral Storage and acid-base homeostasis

Answer 3

bones stores minerals such as Ca^2+ and PO4^3-, which are necessary for electrolyte and acid base balance

Question 4

Blood Cell formation

Answer 4

red bone marrow is the site of blood cell formation

Question 5

Fat Storage

Answer 5

yellow bone marrow stores triglycerides

Question 6

Movement

Answer 6

muscles produce body movement via their attachment to bones

Question 7

Support

Answer 7

the skeleton supports the weight of the body

Question 8

Long Bone

Answer 8

bone that is longer than it is wide (ex. humerus, ulna, radius, femur, fibula, tibia, phalanges, metacarpals, and metatarsals)

Question 9

Short Bone

Answer 9

bone that is as long as it is wide (ex. carpal and tarsal)

Question 10

Flat Bone

Answer 10

bone is broad, flat, and thin (ex. ribs, sternum, and skull)

Question 11

Irregular Bone

Answer 11

bones shape did not fit into other classes (ex. axis, coxal, atlas, sphenoid, and thoracic vertebral)

Question 12

Sesamoid Bone

Answer 12

round, flat, and found with in tendon (ex. patella)

Question 13

Axial Skeleton

Answer 13

skull, auditory ossicles, and hyoid bone, vertebral column, and thoracic cage

Question 14

Number of bones in Axial Skeleton

Answer 14

80 total
29 skull and associated bones:
- cranium 8
- face 14
-auditory ossicles 6
-hyoid bone 1
25 Thoracic cage:
-sternum 1
-ribs 24
26 Vertebral Column
-vertebrae 24
- Sacrum 1, 5 fused together
- Coccyx 1, 4 fused together

Question 15

Appendicular Skeleton

Answer 15

Pectoral and Pelvic girdles
upper and lower limbs