Mizzou Anatomy Module 4 With Complete Solutions 100% Correct

Mizzou Anatomy Module 4 With Complete
Solutions 100% Correct


Skeletal System Functions - ANSWER Support: entire body

Protection: viscera (organs)

Movement: attachment for muscles, etc.

Hemopoiesis: blood cell production

Energy & Mineral Reserves: calcium, etc.



Appendicular vs. Axial Skeleton - ANSWER Appendicular: pectoral girdle, upper limb,
pelvic girdle, & lower limbs

Axial: skull, hyoid bone, vertebral column, & thoracic cage



Hyaline Cartilage - ANSWER Most common

Has tiny, nearly invisible collagen fibers called fibrils

Found at ends of long bones, costal cartilages, respiratory structures, & fetal skeleton



Elastic Cartilage - ANSWER Similar to hyaline, but lots of elastic fibers

VERY resilient & flexible, tolerates repeated bending

Found in pinna (outer ear) & epiglottis



Fibrocartilage - ANSWER Has little ground substance & matrix has thick, dense collagen
fibers

Resists strong compression

Found in intervertebral disks, knee joint, & pubic symphysis

, Spongy (Trabecular) Bone - ANSWER Inside bones

Better at shock absorption



Compact (Cortical) Bone - ANSWER Smooth, dense, external portion of bones, strong
and rigid

Strong & rigid



Osteoblasts - ANSWER Build new bone



Osteoclasts - ANSWER Break down (consume) bone



Osteocytes - ANSWER Mature bone cells



Long Bones - ANSWER Humerus

Radius

Ulna

Femur

Tibia

Fibula



Short Bones - ANSWER Talus

Calcaneus

Carpals of wrist



Irregular Bones - ANSWER Vertebra

Sacrum

Coccyx