Nervous System Flashcards
Functions of the hypothalamus? (at least 6)
a. body temperature
b. heart rate
c. blood pressure
d. thirst
e. appetite & weight control
f. sleep cycles
Describe the dura mater?
The tough outer layer covers and protects the brain and spinal cord. The dura mater is a sac that envelops the arachnoid.
Which structures are associated with sleep and consciousness?
a. hypothalamus
b. basal telencephalon
What are meninges?
They are three thin layers of tissue that cover and protect the brain and spinal cord.
Functions of the dura mater?
The dura mater surrounds and supports the large venous channels (dural sinuses)
Partitioned into several septa, which support the brain.
Describe the arachnoid mater?
A meninge.
Connected to the dura mater on the side closest to the CNS, this middle layer includes a network of fibers and collagen that are part of the suspension system
Functions of the arachnoid mater?
Helps protect the brain and spinal cord from sudden impact.
Functions of the Pia Mater
It acts as a barrier and aids in the production of cerebrospinal fluid.
Describe the Pia Mater
The innermost layer of the meninges, the pia mater closely covers the brain
What structure helps to coordinate muscle balance and movements?
Cerebellum
What sense does the Olfactory cortex interpret?
Smell
What sense does the Primary Gustatory Cortex interpret?
Taste
What sense does the Occipital Lobe interpret?
Vision
What sense does the Auditory cortex interpret?
Hearing
What sense does the Cerebellum interpret?
Balance
What sense does the Thalamus interpret?
Pain
Which two structures regulate breathing?
a. PONS
b. Medulla Oblongata
Which two structures help to regulate blood pressure?
a. brain stem
b. hypothalamus
Which two structures help with the digestive process?
a. hypothalamus
b. rostral insula
What are the three major parts of the neuron?
a. dendrites
b. axon
c. cell body (soma)
What is the function of dendrites?
designed to RECIEVE communications from other cells.
What is the function of axons?
allow neurons to transmit to other cells
What is the function of the cell body?
a. carries genetic information
b. maintains neurons structure
c. provides energy
Where is CSF produced?
CSF is secreted by the CPs located within the ventricles of the brain, with the two lateral ventricles being the primary producers.
Where does CSF circulate/flow?
a. the subarachnoid space around the brain and spinal cord
b. the ventricles of the brain.
What is Cerebrospinal fluid (CSF)?
Cerebrospinal fluid (CSF) is a clear, colorless body fluid found within the tissue that surrounds the brain and spinal cord of all vertebrates.
What does cerebrospinal fluid contain?
a. An ultrafiltrate of plasma
b. low protein
c. few cells
What is Diencephalon?
a. ) Connects the midbrain and forebrain
b. ) Comprises the epithalamus, thalamus, subthalamus, and hypothalamus.
All sensory impulses travel through the thalamus, EXCEPT:
Smell