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MC Test 2

QuestionAnswer
The Layer of skin found only in the palms and soles of feet. Stratum Lucidum
The layer of skin that has actively divinding cells. Stratum Basale
The layer of skin where nerves and glands are located Dermis
The type of hair that is typical of the scalp. Terminal
The type of gland that may be modified to form the mammary (milk) gland. Apocrine Sweat Gland
The portion of the nail in which cells are actively divinding. Nail Root
The % of total skin area an adult arm contains 9
The name for the small channels connecting the lacunae in bone tissue. Canaliculi
The name for the "shaft" portion of a bone. Diaphysis
The name of the tissue membrane covering a bone. Periostium
A vertebra is an example of this kind of bone. Irregular
Cells that are responsible for maintaining matrix material. Osteocytes
The 3 major mineral components in bone. Calcium Hydroxide, Calcium Phosphate, and Hydroxyapetite
The contents of the middle cavity in a long bone. Marrow
The formation of this marks the beginning of endochondral ossification. Cartilage
The lacunae of bone contains this Osteocytes
The name of the cells that break down bone material Osteoclasts
The stage of life at which osteoblasts are most active Early Childhood
A fracture in which a bone breaks into more that two pieces Comminuted
Statins are drugs that inhibit cholesterol synthesis and stimulate... Osteoblasts
The 3 types of fibrous joints Suture, Syndesmosis, and Gomphosis
The type of articulation between the radius and ulna Syndesmosis
Hyperextension Extending PAST 180 degrees
The term for decreasing the angle between 2 bones Flexion
The term for moving toward the midline Adduction
The special movement of the thumb Opposition
The connective tissue layer that surrounds a fascicle in skeletal muscle tissue Perimysium
The presence of this gives skeletal muscle its reddish color Myoglobin
The structure that is continuous with the phospholipid bilayer of the sarcolemma T-tubules
Skeletal muscles use this to quickly produce ATP Creatine Phosphate
Increased permeability of the sarcolemma to sodium ions has what effect on the frequency of skeletal muscle contraction? Increased
What makes skeletal muscles different from "typical" cells? Presence of many nuclei
The name of the state of a muscle being stimulated too frequently to have a relaxation phase Complete Tetanus
What must occur for attachment sites on actin fibers to become available? Calcium must bind to troponin
The region of a sarcomere in which no thick filament (myosin) is present H zone
Acetylcholine esterase's presence in the neuromuscular junction prevents what? Overstimulation of a myofibril
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