In which of the following primary taste sensations is the receptor that identifi
ID: 3518036 • Letter: I
Question
In which of the following primary taste sensations is the receptor that identifies the ligand (chemical) a channel for that ligand? (choose all that apply)
a. bitter
b. salty
c. sour
d. sweet
e. umami
Your monster seems to be having sleep apnea so you decide to perform a sleep study to determine the cause. You monitor the monster with an EEG (electroencephalogram) in a sleep lab. To get a baseline you record the waves when the monster is awake but resting with eyes closed expecting to see only alpha waves. However you see delta waves. What is the likely explanation for this? (2pts)
a. the monster is brain damaged
b. the monster is perfectly healthy
c. the monster is sleep walking
d. the monster is sleeping
e. the monster is under emotional stress
All of the following are similarities between the macula and crista of the vestibular apparatus except?
a. both contain a jello like membane
b. both contain calcium carbonate crystals to accentuate movements
c. both contain hair cells as receptors
d. both respond to acceleration
e all of the above are similarities between the macula and crista
What structures act as a drain for cerebrospinal fluid into the sagittal sinus?
a. arachnoid villi
b. astrocytes in the fourth ventricle
c. choroid plexus in the ventricles
d. dura mater
e. pia mate
Explanation / Answer
In which of the following primary taste sensations is the receptor that identifies the ligand (chemical) a channel for that ligand? (choose all that apply)
a. bitter
b. salty
c. sour
d. sweet
e. umami
Ions (Na+, H+) activate salty and sour (depolarization). Sugars, amino acids and organic compounds depolarize receptors for sweet, bitter and umami (GPCRs)
Your monster seems to be having sleep apnea so you decide to perform a sleep study to determine the cause. You monitor the monster with an EEG (electroencephalogram) in a sleep lab. To get a baseline you record the waves when the monster is awake but resting with eyes closed expecting to see only alpha waves. However you see delta waves. What is the likely explanation for this?
a. the monster is brain damaged
presence in adults who are awake indicate serious brain damage
All of the following are similarities between the macula and crista of the vestibular apparatus except?
b. both contain calcium carbonate crystals to accentuate movements
arachnoid villi act as a drain for cerebrospinal fluid into the sagittal sinus
Absorption of the CSF into the blood stream takes place in the superior sagittal sinus through structures called arachnoid villi.