Exam 2 (Unit 2)

A  True

B  False

A  III only

B  I and II only

C  III and IV only

D  I and III only

E  I only

F  V only

A  presbyopia

B  hyperopia

C  none of the choices.

D  myopia

A  True

B  False

A  I and II only

B  None of the choices

C  I, II, and IV only

D  I only

A  IV only

B  II only

C  I and II only

D  I only

E  II and III only

A  TRUE

B  FALSE

A  pituitary gland

B  Epithalamus

C  limbic system

D  hypothalamus

A  Calcium

B  sodium and potassium

C  sodium

D  potassium

A  Interoceptor, nocioceptor

B  chemoreceptor, mechanoreceptor

C  sensory receptor, olfactory receptor

D  Exteroceptor, mechanoreceptor

A  dendrite

B  axon

C  all of the choices

D  soma

E  axon terminal

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

B  they need a threshold stimulus

C  they are inhibited by IPSPs.

D  they travel more slowly on myelinated fibers

A  calcium

B  sodium

C  chloride

D  potassium

A  bronchiole dilation in lungs; sympathetic

B  gallbladder contracts to expel bile; parasympathetic

C  penis ejaculation; sympathetic

D  promotes urination; sympathetic

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

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

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

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

A  lens accommodation for close vision

B  raising blood glucose levels

C  a stimulation of heart rate and force of contraction

D  allowing the body to cope with an external threat

A  medulla oblongata

B  reticular formation

C  hypothalamus

D  midbrain

A  FALSE

B  TRUE

A  cerebellum

B  thalamus

C  hypothalamus

D  medulla

A  thermoreceptors

B  nociceptors

C  interoceptors

D  exteroceptors

A  exteroceptors

B  interoceptors

C  proprioceptors

D  nociceptors

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  depolarization of the postsynaptic cell membrane

B  influx of positively charged ions into the postsynaptic cell

C  opening of chemically gated sodium channels

D  hyperpolarization of the postsynaptic cell membrane

A  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

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

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

D  sensory and motor neurons that supply the digestive tract

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

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

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 potassium channels will open.

B  Chemically gated chloride channels will open.

C  Chemically gated sodium channels will open.

D  Chemically gated sodium channels will be closed.

A    

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

C  Acetylcholine has many different forms.

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

E  Different postsynaptic cells will have different receptors.

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  sensory (afferent) division

B  parasympathetic division

C  sympathetic division

D  somatic nervous system

A  provide enormous surface area for receiving signals from other neurons

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

C  convey incoming messages toward the cell body

D  produce short-distance signals called graded potentials

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

B  a presynaptic neuron is sending frequent EPSP

C  the postsynaptic cell is sending frequent action potential

D  the presynaptic neuron is sending frequent IPSP

A  FALSE

B  TRUE

A  TRUE

B  FALSE

A  TRUE

B  FALSE

A  TRUE

B  FALSE