Ch 8 - Skeletal, Nervous, Muscular Flashcards
In order for an impulse to move from one neuron to another, myelin must be released.
True
False
False
Dendrites conduct electrical impulses toward the cell body.
True
False
True
Neurons can transmit impulses because they are connected.
True
False
False
Neurotransmitters are released to carry impulses from one neuron to another.
True
False
True
There is only one axon in a neuron, but there can be hundreds of dendrites.
True
False
True
Stabilization of the deltoid muscles helps prevent subluxation of the humeral head from the glenoid fossa.
True
False
False
(Primary stabilizers of the humeral head are the rotator cuff muscles.)
Subluxation = dislocation
The posterior fibers of the deltoid extend and laterally rotate the humerus.
True
False
True
The muscles of the rotator cuff originate on the scapula.
True
False
True
When the rhomboids stabilize the scapula, the teres major can internally rotate the humerus.
True
False
True
The hamstring muscle group assists with knee extension.
True
False
False
The sartorius functions at both the hip and knee joints.
True
False
True
Flexion and external rotation at the knee are performed by the biceps femoris.
True
False
True
The four quadriceps muscles each have their own insertion point.
True
False
False
GTOs are sensory receptors located ____________________.
Between the muscle belly and its tendon
GTOs respond to muscle tension by causing the muscle to _______.
Relax