2nd and 3rd chapter for nervous system

These flashcards cover key concepts about the nervous system and sensory perceptions as discussed in the lecture.

What is the function of the Pons in the brain?

Helps regulate rhythm of breathing.

What are the main functions of the medulla oblongata?

Controls cardiac, vasomotor, and respiratory centers.

What does the Reticular Formation do?

Arouses the cerebral cortex into a state of wakefulness.

What is the reflex arc sequence?

Receptor → Sensory neuron → Interneuron → Motor neuron → Effector.

What are the two types of nervous systems?

Somatic nervous system (conscious movements)
Autonomic nervous system (subconscious movements).

What are the five types of sensory receptors?

Chemoreceptors, pain receptors, thermo receptors, mechanoreceptors, and photo receptors.

What is the difference between sensation and perception?

- awareness of sensory events
- interpretation of those events by the brain.

What is sensory adaptation?

The ability to ignore unimportant continuous stimuli.

What are the five taste sensations?

Sweet, sour, salty, bitter, and umami.

What triggers the Ty Panic Reflex?

Loud sounds causing muscle contraction to lessen vibrations and prevent damage.

What are the main structures involved in hearing and balance?

Cochlea for hearing, semicircular canals for dynamic equilibrium, and vestibule for static equilibrium.

what are meninges ?

membranes that protect the brain and spinal cord

how many layers doe meninges have ?

3
dura matter: toughest layer
arachnoid matter: web like
pia matter :attached to brain and spinal cord contains blood and nerves

where is CSF made ?

in the 4 Ventricles
latteral FIRST
latteral SECOND
third and fourth ventricles.

CSF is secreted by ….

Choroid processes

CSF is absorbed by …..

Arachnoid granules

what is the difference between ascending and descending tracts ?

- tracts carry sensory information to the brain,

-transmit motor commands from the brain to the body.

what are the 2 windows in the ear ?

Round and Oval