Exam 4 Group work and review questions Flashcards
What does “thoracolumbar” mean?
Thoracic lumber
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
rest and digest
parasympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
fight or flight
sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
ACh
Both
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Noepinephrine/ epinephrine
sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Thoracolumber
Sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
short postganglionic neuron
parasympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Cholinergic postganglionic neuron
sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
White and Grey Ramus
sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Craniosacral
Parasympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Vagus Nerve
Parasympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Visceral Reflex Arc
Sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Increases blood flow to muscles and away from intestines
Sympathetic
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
non-myelinated post ganglionic neuron
Both
Choose Sympathetic (S), Parasympathetic (P), or Both (B):
Ganglia are located within target organs
Parasympathetic
Nicotinic Receptors
Located on target tissues or postganglionic neurons?
Target tissues- muscle- adrenal medulla
Nicotinic Receptors
Neurotransmiter;
ACh
Nicotinic Receptors
sympathetic, parasympathetic or both?
Both
Muscarinic Receptors
Located on target tissues or postganglionic neurons?
Smooth muscles, glands, cardiac muscle
Muscarinic receptors
neurontransmitter:
Ach –> G-Protein Coupled Receptor
Muscarinic Receptors
s, p or both?
Parasympathetic
Alpha adrenergic receptors
located on target tissues or postganglionic neurons
target tissues
Alpha adrenergic receptors
neurotransmitter:
norepinephrine
Alpha adrenergic receptors
s, p or both
sympathetic
Beta adrenergic receptors
target tissues or postganglionic neurons?
Target tissues
Beta adrenergic receptors
neurotransmitter:
norepinephrine
Beta adrenergic receptors
s, p or both
sympathetic
Will activation muscarinic ACh receptors located on the heart cause increased or decreased heart rate?
Decrease
Why are nAch receptors sucha good target for toxins?
found in muscle so it eliminates fight or flight
Which drug would you give a patient to reduce painful swelling (agonist or antagonist)
agonist- reduce swelling
Which drug to lower blood pressure (Agonist or antagonist?)
Antagonist- lowers blood pressure
Which neurotransmitter and receptor type mediates pupillary dilation?
parasympathetic, ACh
Which neurotransmitter and receptor type mediates pupillary constriction?
Sympathetic; Norepinhrine, epinephrine
What is the purpose of disc shape in outer segment?
Increases surface area
Rhodopsin=_______+______
Protein (opsin) + Vitamin A- Derived Chromophore (retinal)
Classify as Central or Peripheral:
Highest concentration of rods
Peripheral
Classify as Central or Peripheral:
Highest concentration of cones
Central
Classify as Central or Peripheral:
Which is affected by Macular degeneration?
Central
Which photoreceptor dominates black/white vision?
Rods
Which photoreceptor functions only in color vision?
Cones
Why is it more difficult to indetify the color of an object when in low light contions, even when there’s enough light to clearly indentify the object?
Cones are less sensitive than rods
Nearsighted is referred to as
myopia
Transduction is ____
G- Protein
Phosphodiesterase cleaves ______ to yield ________
cGMP; GMP
Write the change that occurs in each molecule when going from Dark —> Light:
Retinal (_____ to ______isomer)
off to on; changes shape
Write the change that occurs in each molecule when going from Dark —> Light:
Transducin (_____ Bound to ____ bound)
GTP Bound to GMP Bound
Write the change that occurs in each molecule when going from Dark ---> Light: PDE is (\_\_\_\_ to\_\_\_\_) on and off
on to off
Write the change that occurs in each molecule when going from Dark —> Light:
CNG channel _____ to ____
open to close
Write the change that occurs in each molecule when going from Dark —> Light:
Bipolar ____to_____
inhibited to activated
Write the change that occurs in each molecule when going from Dark —> Light:
Retinal Ganglion Cell ____ to ____
off to on
The _______ muscle controls Ffocus and the ___ muscle controls brightness
ciliary muscle, iris
Classify each as Olfaction, Gustation, or both:
Chemoreceptors
both
Classify each as Olfaction, Gustation, or both:
detects airborne molecules
olfactory
Classify each as Olfaction, Gustation, or both:
receptors expressed in neurons
olfactory
Classify each as Olfaction, Gustation, or both:
Umami
Gustation
Classify each as Olfaction, Gustation, or both:
Receptors are ligand-gated ion channels
both
Classify each as Olfaction, Gustation, or both:
Receptors are GPCRs
gustation
Classify each as Olfaction, Gustation, or both:
cAMP involved
Olfactory
Which enzyme cleaves cAMP?
Pyrophosphate
Which enzyme makes cAMP?
Adenylate cyclase
Gusatory detection of H+ is called “_____” taste.
Sour
Gusatory detection of sucrose is called “_____” taste
sweet
Gustatory detection of Na+ is called “____” taste
salty
Gustatory detection of glutamate is called “____” taste.
Umami
Gustatory detection of quinine/ caffeine is called “____” taste
Bitter
The scala media endolymph has unusually ______ levels of K+
high
Cochlear implants are useful in treating ____ deafness but not ______ deafness
sensorineural but not conductive
What are the three main parts of the inner ear?
semicircular, vestibule and cochlea
Which two parts of the inner ear are responsible for hearing?
semicircular canal, vestibule
Which of the inner ear parts is responsible for hearing?
Cochlea
Which feature of the sine wave encodes pitch
wavelength
Which feature of the sine wave encodes loudness
height or amplitude
Rotational (angular) acceleration is mediated by _______.
semicircular canals
Linear acceleration is mediated by ________.
vestibules
The __________ _________ has short, stiff fibers near the oval window, and long, floppy fibers near the helicotrema
Basliar membrane
For each G-protein, name which enzyme is stimulated or inhibited (and indicate inhibition or stimulation)
G i
Ac- inhibits
For each G-protein, name which enzyme is stimulated or inhibited (and indicate inhibition or stimulation)
G s
Ac stimulate
For each G-protein, name which enzyme is stimulated or inhibited (and indicate inhibition or stimulation)
Q q
Phospholipase
Which two hormones have intracellular receptors?
GPCR and cAMP
Growth hormone release hormone acts on cells to induce growth hormone release. Which type of reulation is this?
Hormoral
What does anabolic and catabolic mean?
anabolic- build up
Catabolic- tear down
If thyrotropin-release hormone (TRH) is hypersecreted, would this cause a goiter or exophthalmos?
exophthalmous
Which 2 hormones (1 hypothalamic & 1 pituitary) are regulated by feedback from blood levels of thyroid hormones (TH)?
TRH and TSH
Why is this feedback harmful in the case of hypothyroidism that is caused by iodine deficiency?
creates goiter
Why is this feedback ineffective in Grave’s disease?
Activates thyroid receptors
TH levels in the fed-state are expected to be ______ than in the fasted-state. (higher or lower?)
higher
Leptin levels in the fed-state are expected to be ______ than in the fasted-state. (higher or lower?)
higher
________ is the name of the full-length protein (and the gene) that is the precursor to TH production.
throglobui
_______ is the more bioactive form of TH.
T3
TH is secreted by ______ cells of the thyroid.
follicular
Which hormone is responsible for high bllod pressure due to Na retension
mineralcorticoroids- aldosterone
Which hormone is responsible for high blood pressure due to elevated blood glucose levels
Gluconeogensis, glucocorticoids, cortisol
Which hormone is responsible for insomnia
Glucocorticoids- cortisol
Which hormone is responsible for beard growth
Glucocorticords-testosterone and estrogens-androgens
Which of the above symptoms is counteracted by atrial natriuretic peptide action?
high blood pressure due to Na retenion
Adrenocorticosteroids are ________-based. (protein or cholesterol?)
Cholesterol
What happens if there is too much ADH secretion? (describe effect on bladder & blood pressure)
cause blood pressure to go up
Which hypothalamic hormone, when hypersecreted, causes dwarfism?
Too little Growth Hormone
Compare/Contrast the roles of oxytocin & prolactin in breastfeeding.
Prolactin- production of milk
Oxytocin- Milk Release
Compare/Contrast the roles of FSH & LH in reproductive system.
fsh- stimulates production of eggs and sperm
LH- stimulates progesterone and estrogen and testosterone
Which hormone stimulates breakdown of bone?
PTH
Which hormone can lower blood Ca2+?
Calcitonin
Pancreatic _______ cells secrete the hormone _________, which lowers blood glucose.
Beta cells, insulin
Pancreatic _______ cells secrete the hormone _________, which raises blood glucose.
Alpha cells, glucagon
Leptin may help to (raise or lower?) blood glucose levels in mice?
lower