During the propagation of a nerve impulse, the action potential results from the movement of
K+ ions from extracellular fluid to intracellular fluid
Na+ ions from intracellular fluid to extracellular fluid
K+ ions from intracellular fluid to extracellular fluid
Na+ ions from extracellular fluid to intracellular fluid
Injury to vagus nerve in human is not likely to affect
tongue movements
gastrointestinal movements
pancreatic secretion
cardiac movements
Acute vision is present in
vulture
shark
bat
frog
In the resting state of the neural membrane, diffusion due to concentration gradients, if allowed, would drive
K+ into the cell
K+ and Na+ out of the cell
Na+ into the cell
Na+ out of the cell
Third ventricle of brain is also known as
metacoel
rhinocoel
paracoel
diacoel
In a man, abducens nerve is injured. Which one of the following functions will be affected?
Movement of the eye ball
Swallowing
Movement of the tongue
Movement of the neck
Bowman's glands are located in the
proximal end of uriniferous tubules
anterior pituitary
female reproductive system of cockroach
olfactory epithelium of our nose
In which animal nerve cell is present but brain is absent?
Sponge
Earthworm
Cockroach
Hydra
What is the intensity of sound in normal conversation?
10-20 dB
35-60 dB
70-90 dB
120-150 dB
In humans, visceral organs are innervated by
sympathetic nerves and are under conscious control
parasympathetic nerves and are under conscious control
Both (a) and (b)
both sympathetic and parasympathetic nerves but are not under conscious control
