Exam 2 (Unit 2)

A  True

B  False

A  I and III only

B  V only

C  I and II only

D  III and IV only

E  III only

F  I only

A  presbyopia

B  myopia

C  none of the choices.

D  hyperopia

A  True

B  False

A  I, II, and IV only

B  None of the choices

C  I and II only

D  I only

A  II only

B  I and II only

C  IV only

D  II and III only

E  I only

A  TRUE

B  FALSE

A  Epithalamus

B  limbic system

C  pituitary gland

D  hypothalamus

A  sodium

B  Calcium

C  sodium and potassium

D  potassium

A  chemoreceptor, mechanoreceptor

B  Interoceptor, nocioceptor

C  sensory receptor, olfactory receptor

D  Exteroceptor, mechanoreceptor

A  axon terminal

B  axon

C  soma

D  dendrite

E  all of the choices

A  they are inhibited by IPSPs.

B  they exhibit an all-or-none response. b. they are inhibited by IPSPs.

C  they need a threshold stimulus

D  they travel more slowly on myelinated fibers

A  sodium

B  potassium

C  chloride

D  calcium

A  promotes urination; sympathetic

B  gallbladder contracts to expel bile; parasympathetic

C  bronchiole dilation in lungs; sympathetic

D  penis ejaculation; sympathetic

A  decreased blood glucose, increased GI peristalsis, and decreased heart rate and blood pressure

B  decreased blood glucose, increased GI peristalsis, and increased heart rate and blood pressure

C  increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure

D  increased blood glucose, increased GI peristalsis, and decreased heart rate and blood pressure

A  lens accommodation for close vision

B  allowing the body to cope with an external threat

C  a stimulation of heart rate and force of contraction

D  raising blood glucose levels

A  midbrain

B  hypothalamus

C  reticular formation

D  medulla oblongata

A  TRUE

B  FALSE

A  thalamus

B  medulla

C  hypothalamus

D  cerebellum

A  exteroceptors

B  thermoreceptors

C  interoceptors

D  nociceptors

A  nociceptors

B  exteroceptors

C  proprioceptors

D  interoceptors

A  autonomic only

B  rapid, predictable, and can be learned responses

C  always mediated by the brain

D  involuntary, yet may be modified by learned behavior

A  hyperpolarization of the postsynaptic cell membrane

B  opening of chemically gated sodium channels

C  depolarization of the postsynaptic cell membrane

D  influx of positively charged ions into the postsynaptic cell

A  sensory and motor neurons that supply the digestive tract

B  sensory neurons that convey information from somatic receptors in the head, body wall, and limbs and from receptors from the special senses of vision, hearing, taste, and smell to the CNS

C  motor fibers that conduct nerve impulses from the CNS to smooth muscle, cardiac muscle, and glands

D  motor fibers that conduct nerve impulses from the CNS to skeletal muscles

A  Voltage gated potassium ion channels open slowly and remain open long enough to cause hyperpolarization.

B  Potassium permeability is about 25 times greater than sodium ions.

C  The sodium potassium pump consistently moves ions as long as ATP is available, and regardless of membrane potential changes.

D  A threshold stimulus will cause the opening of voltage gated sodium ion channels that will cause further depolarizing stimulus. This stimulus will open still more voltage gated sodium ion channels.

A  Chemically gated chloride channels will open.

B  Chemically gated sodium channels will open.

C  Chemically gated sodium channels will be closed.

D  Chemically gated potassium channels will open.

A  Acetylcholine has many different forms.

B    

C  Different postsynaptic cells will have different receptors.

D  Postsynaptic cells have a dynamic and changing metabolism and respond differently at different times.

E  Acetylcholine has a “dose effect.” Larger doses are stimulating while small doses inhibit.

A  voltage-gated channel

B  ligand-gated channel

C  leakage channel

D  mechanically-gated channel

A  sensory (afferent) division

B  parasympathetic division

C  somatic nervous system

D  sympathetic division

A  parallel

B  convergent

C  none of the choices.

D  serial

A  parasympathetic division

B  sympathetic division

C  sensory (afferent) division

D  somatic nervous system

A  convey incoming messages toward the cell body

B  provide enormous surface area for receiving signals from other neurons

C  produce short-distance signals called graded potentials

D  generate nerve impulses and transmit them away from the cell body

A  the presynaptic neuron is sending frequent IPSP

B  the postsynaptic cell is sending frequent action potential

C  the postsynaptic cell can be influenced by only one presynaptic cell

D  a presynaptic neuron is sending frequent EPSP

A  FALSE

B  TRUE

A  FALSE

B  TRUE

A  FALSE

B  TRUE

A  TRUE

B  FALSE