100
Which of the following muscles does not originate nor insert onto the mandible?
-depressor labii inferioris
-levator labii superioris
-mentalis
-platysma
levator labii superioris
100
The nerve that innervates SCM is:
accessory XI
100
Where is smooth muscle tissue is found?
lining hollow organs and body tubes
100
The muscle protein whose function is related to its golf club-like shape is:
myosin
100
These muscles protract and move the mandible side to side:
the pterygoids
200
Bending over to touch your toes is an example of what action of the vertebral column?
Flexion
200
What is the refractory period?
the time following a stimulus during which a muscle cell cannot respond to another stimulus
200
Cardiac muscle can stay contracted 10-15 times longer than skeletal muscle because:
channels allowing calcium ions to stay open for a longer period of time
200
What is the Z disc?
zigzag of protein which separate one sarcomere from another
200
Which muscle within the neck, flexes the head bilaterally and when acting singly rotates to the opposite side?
sternocleidomastoid muscle
300
Muscles can move a body or body part due to its ____________________ onto that bone or body part!.
insertion
300
What is the function of calcium ions in skeletal muscle contraction?
bind to the troponin on thin filaments so that myosin-binding sites on actin can be exposed
300
A type of muscle tissue that is both striated and involuntary is:
cardiac muscle tissue
300
Fused tetanus is:
a sustained contraction with no relaxation between stimuli
300
What muscles are often responsible for tension headaches?
the subocciptals
400
The insertion of the zygomaticus minor muscle is the:
upper lip
400
What is the sarcolemma?
the plasma membrane of a myofiber
400
The function of myoglobin is to:
bind oxygen for aerobic respiration
400
The motor protein in all three types of muscle tissue is:
myosin
400
Know 16, 17, 18
16-risorius
17-depressor anguli oris
18-mentalis
500
The innervation of the occipitofrontalis is the:
facial (VII)
500
Bending the head back as if to look up at the sky is what type of movement?
hyperextension
500
Which of the following is not a function of muscle tissue:
-producing body movement
-stabilization of body positions
-fat storage
-regulation of organ volume
fat storage
500
Making circles with the arms is best described as:
circumduction
500
Know G, 2, 10
G-galea aponeurotica
2-temporalis
10-levator labii superioris