Exam 3

Front 1

Isometric contractions of a muscle change the length of the fibers

Back 1

False

Front 2

If a body is to move, movement must occur at the joint

Back 2

True

Front 3

All freely moveable diarthrotic joints are synovial joints

Back 3

True

Front 4

The foot can extend, dorsoflex and plantar flex

Back 4

True

Front 5

Uric acid crystals settle out in the joints in gouty arthritis

Back 5

True

Front 6

Skeletal muscle is called involuntary because it is the only type of muscle usually subject to conscious control

Back 6

False

Front 7

Large amounts of the oxygen-storage protein myoglobin are found in “fast twitch white fiber” skeletal muscle

Back 7

False

Front 8

Skeletal muscles need nerve stimulation for contraction to occur

Back 8

True

Front 9

Muscle fatigue and soreness are caused by a build-up of lactic acid (=lactic ion)

Back 9

True

Front 10

Action potentials occur on nerve axons as Na+ and K+ gates open in response to chemical signals

Back 10

F

Front 11

Saltatory condition occurs because of the presence of sale (NaCl) around the neuron

Back 11

False

Front 12

Cardiac muscle is found in the walls of the heart and walls of arteries and veins

Back 12

False

Front 13

The nodes of Ranvier are found only on unmyelinated, peripheral, neural processes

Back 13

False

Front 14

Oligodendrocytes myelinate axons, but only in the CNS

Back 14

True

Front 15

Schwann cells myelinate axons, but only in the

Back 15

False

Front 16

The “tri” in triceps refers to the number of insertions the muscle has

Back 16

False