The hydrolysis of ATP yields ADP, phosphate ion, and
A) AMP.
B) H2O.
C) energy.
D) adenosine
E) nuclease.
The term ________ refers to certain amino acids, which can have both a positive charge
and a negative charge.
A) anion
B) cation
C) twinion
D) zwitterion
E) double ion
The ________ nervous system stimulates the arrector pili muscles and gives you
“goosebumps.”
A) parasympathetic
B) afferent
C) dorsal
D) sympathetic
E) somatic
Structurally, the pubic symphysis is classified as a ________ articulation.
A) cartilaginous
B) bony
C) synovial
D) fibrous
E) diarthrotic
Figure 20-2 Cardiac Cycle
What occurs at the circled label “7” on the graph?
A) isovolumetric ventricular relaxation
B) sympathetic stimulation
C) isovolumetric ventricular contraction
D) ventricular ejection
E) ventricular filling
The neurotransmitter ACH is
A) always excitatory when used in the synapses of the sympathetic nervous system.
B) secreted by the postganglionic nervous.
C) going to reduce the activity of the other neurotransmitter norepinephrine.
D) broken down by monoamine oxidase.
E) a chemical similar to the structure of adrenalin.
When an antibody binds to its specific antigen a(n) ________ is formed.
A) phagocytic unit
B) agglutination system
C) antibody-antigen complex
D) hemolytic setting
E) co-stimulation region
Identify the bone labeled “1.”
Figure 8-4 Bones of the Ankle and Foot
A) talus
B) calcaneus
C) cuneiform V
D) cuboid
E) metatarsal
The middle piece of the sperm contains the ________ in a spiral arrangement.
A) nucleosome
B) chromosomes
C) mitochondria
D) flagella
E) acrosome
At a(n) ________ synapse, a neurotransmitter is released to stimulate the postsynaptic
membrane.
A) electrical
B) cell
C) chemical
D) osmotic
E) gap
Where would calcium ions be predominately found?
Figure 10-1 Skeletal Muscle Fiber
A) 1
B) 2
C) 4
D) 8
E) 9
Which pair of muscles is antagonistic to each other in action?
A) the zygomaticus and the orbicularis oris
B) the trapezius and the sternocleidomastoid
C) the internal obliques and the intercostal muscles
D) the latissimus dorsi and the trapezius
E) the orbicularis oris and the orbicularis oculi
A(n) ________ can be described as a broad tendinous sheet.
A) fasciae
B) retinaculum
C) aponeurosis
D) interstitium
E) tympanum