Answer and Explanation:
The sensory information encoded for by the hair cells in the maculae of the saccule and utricule are:
- the direction and strength of mechanical stimuli (polarity information)
- Response to the head's rotational movement
Functions of the otoliths
The otoliths provide balance, movements and serve as directional indicators in vertebrates. They help higher vertebrates in sound detection.
Functions of the vestibular nuclei
- Maintenance of equilibrium and posture
- Modification of muscle tone
- Relays information to the cerebral cortex
- Directing the movements of the head and eye
- Maintaining the line of vision
I'm pretty sure the blank is underneath. Hope this helped. Have a great day! :D
On the Galapagos Islands, Darwin also saw several different types of finch, a different species on each island. ... Finches that ate small nuts and seeds had beaks for cracking nuts and seeds. Darwin noticed that fruit-eating finches had parrot-like beaks, and that finches that ate insects had narrow, prying beaks.
The question is incomplete. The complete question is:
Question: Impulses originating in the part of the brain called the medulla would most directly affect which body structure?
a. A leg muscle
b. A ligament
c. An arm bone
d. The heart
Answer:
d. The heart
Explanation:
The medulla oblongata contains a number of reflex centers for regulating vital body functions such as heartbeat, breathing, and vasoconstriction. The medulla contains several nuclei, a collection of neuronal cell bodies.
For example, impulses originated in the cardiovascular center regulates the rate and force of the heartbeat and the diameter of blood vessels. Impulses from the cardiovascular center flow along sympathetic and parasympathetic neurons. An increase in sympathetic stimulation from the cardiovascular center of medulla increases heart rate and contractility while a decrease in sympathetic stimulation decreases heart rate and contractility.
