Select all that are true regarding the RAS. a. It is a motor component of the reticular formation. b.It helps initiate voluntary muscle contraction. c.It processes visual, auditory, and touch stimuli. d. It keeps the cerebral cortex in an alert, awake state.

ANSWER:

(3). It processes visual, auditory, and touch stimuli

(4). It keeps the cerebral cortex in an alert, awake state

EXPLANATION:

The reticular activating system (RAS) is a network of neurons located in the brain stem that project anteriorly to the hypothalamus to mediate behavior, as well as both posteriorly to the thalamus and directly to the cortex for activation of awake, desynchronized cortical EEG patterns

The RAS processes visual, auditory, and touch stimuli.

The RAS also keeps the cerebral cortex in an alert, awake state

3. It processes visual, auditory, and touch stimuli

4. It keeps the cerebral cortex in an alert, awake state

Explanation:RAS is a family of proteins which are found in an animal cell land organs.Tehey belong to a class of protein namely small GTPase , which has a function of transmitting signals within cells. They are prototypic and has a 3D structure and are responsible for regulating various actions in a cell.

c: in the east might be the correct answer