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Life, 4/e

Ricki Lewis, University of New York at Albany
Mariëlle Hoefnagels, University of Oklahoma
Douglas Gaffin, University of Oklahoma
Bruce Parker, Utah Valley State College

The Musculoskeletal System

Chapter Quiz


1	True or false. The characteristics of the musculoskeletal system of each species reflect its ancestry and selective forces in the environment.
		A)	True
		B)	False


2	Mosquitoes and other insects have a(n) _____________ of chitin.
		A)	hydrostatic skeleton
		B)	endoskeleton
		C)	exoskeleton
		D)	None of these is correct.


3	Which of the following is a function of the musculoskeletal system?
		A)	locomotion
		B)	support and protection
		C)	house blood-forming tissue
		D)	mineral storage
		E)	All of these are correct.


4	What structure is part of the appendicular skeleton?
		A)	ribs
		B)	sternum
		C)	skull
		D)	collarbone


5	There are ___________ pairs of ribs attached to the thoracic vertebrae in the normal human.
		A)	2
		B)	10
		C)	12
		D)	14


6	___________ fibers in cartilage provide elasticity.
		A)	Elastin
		B)	Collagen
		C)	Keratin


7	True or false. One square inch of bone can bear a load of approximately 19,000 pounds
		A)	True
		B)	False


8	Name the spaces in bone matrix that house osteocytes.
		A)	osteonic canals
		B)	elastin
		C)	canaliculi
		D)	lacunae


9	The weight of a long bone is reduced by ____________.
		A)	spongy bone
		B)	compact bone
		C)	marrow cavity
		D)	Both a and c are correct.
		E)	All of these are correct.


10	True or false. Invertebrates primarily use smooth muscle.
		A)	True
		B)	False


11	Involuntary, one nucleus per cell, and intercalated disks describe ____________.
		A)	cartilage
		B)	smooth muscle
		C)	cardiac muscle
		D)	skeletal muscle


12	Muscle is attached to bone by _________.
		A)	smooth muscles
		B)	cartilage
		C)	ligaments
		D)	tendons


13	What defines the boundaries of a sarcomere?
		A)	A band
		B)	H band
		C)	I band
		D)	Z lines


14	The protein(s) _____________ control muscle contraction.
		A)	dystrophin
		B)	troponin
		C)	tropomyosin
		D)	Both b and c are correct.


15	Energy is stored in muscles in the form of ___________.
		A)	ATP
		B)	ADP
		C)	creatine phosphate
		D)	myoglobin


16	Sprinters have an abundance of what type of muscle fibers?
		A)	fast twitch - fatigable
		B)	fast twitch – fatigue resistant
		C)	slow twitch – fatigue resistant
		D)	slow twitch - fatigable


17	A synovial joint contains lubricating synovial fluid produced where in the joint?
		A)	bursae
		B)	cartilage
		C)	synovial membrane
		D)	joint capsule


18	A muscle’s _________ is the end attached to the immovable bone.
		A)	insertion
		B)	origin
		C)	tendon
		D)	belly


19	True or false. Exercise-induced increase in muscle mass is termed hypotrophy
		A)	True
		B)	False


20	True or false. Many cells and organisms have movement mechanisms based on actin and myosin.
		A)	True
		B)	False

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