which branch carries motor neurons to structures on the back of the body trunk?
a) 1
b) 2
c) 5
d) 7
e) 11
11) the infraspinatus has its insertion on the
a) greater tubercle of the humerus.
b) tuberosity of the radius.
c) lesser tubercle and intertubercular groove of the humerus.
d) clavicle and scapula.
e) vertebral border near the spine.
12) the first heart sound (“lub”)
a) is associated with atrial systole.
b) is associated with closing of the mitral valve.
c) is associated with opening of the mitral valve.
d) is associated with closing of the aortic valve.
e) is associated with opening of the aortic valve.
13) which of the following statements is false?
a) cardiac muscle contractions cannot be summated.
b) skeletal muscle contractions may be summated.
c) skeletal muscle stimulation is neural.
d) cardiac muscle stimulation is neural.
e) cardiocytes are interconnected through intercalated discs.
14) hormones can be divided into different groups based on their chemistry. these
categories include
a) peptides.
b) steroids.
c) eicosanoids.