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33 Cards in this Set

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What are the functions fo the cerebralspinal fluid?
Maintain even pressure & Absorb shock
What are the components of cerebrospinal fluid?
1. Water
2. Glucose
3. Sodium Chloride
4. Protein
5. Some waste products, such as urea
Dura Mater
Outermost Spinal meninx
"Tough mother"
1 of 3 layers that covers the brain and spinal cord
Subdural Space
Space between the Dura Mater and the arachnoid mater. Contains Serous Fluid
Arachnoid
"Spider-like." Middle layer of meninges
Subarachnoid space
Cavity beneath arachnoid space that is filled with serous fluid
Pia Mater
"Tender mother." Innermost layer of meninges
What are the 3 primary divisions of the brain?
Forebrain (prosencephalon)
Midbrain (mecencephalon)
Hindbrain (rhombencephalon)
PROSENCEPHALON
Consists of cerebrum and is seperated in halves by the longitudinal fissure.
Controls motor & emotional processing. AKA FOREBRAIN
MECENCEPHALON
Contains the ventral cerebral and alos conveys impules from the cerebral cortex to the pons & spinal cord. AKA MIDBRAIN
RHOMBENCEPHALON
(occipital area) Helps interpret visual input from occipital portion of the brain. Cerebellum is here, helps maintain body posture & balance. Cerebellum is the reflex center that coordinates skeletal movement. AKA HINDBRAIN
CEREBRUM
Makes up bulk of brain. Surface is made of gray matter. AKA TELENCEPHALON
DIENCEPHALON
Contains the thalamus and the hypothalamus
What does the Thalamus do?
serves as a relay center and functions in the integration of sensory information
What does the hypothalamus do?
Controls body temp. water balance, sleep, appetite, some emotions and both divisions of the autonomic nervous system
What two major structures make up the FOREBRAIN?
1. Cerebrum
2. Diencephalon
CEREBELLUM
Shaped like a butter fly.
Located under the optical lobes and behind the pons & medulla. Made of white matter with gray just on the surface.
Reflex center in charge of coordination
MEDULLA OBLONGATA
Portion of the brain the continues down with the spinal cord.
Controls vital functions such as breathing, heart rate, blood pressure, swallowing and coughing
PONS
Anterior end of medulla.
Relays impulses between the cerebrum & the cerebellum
AND between the cerebrum and the medulla
What is a hemisphere?
2 halves of a head
SULCUS
Shallow groove
FISSURE
Deep groove
Seperates the cerebrum into hemispheres
LOBE
4 divisions of the brain
VENTRICLE
Cavities within the brain that are filled with cerebral-spinalfluid.
FRONTAL LOBE
Forms the interiro portion f each hemisphere.
Controls voluntary function, moods, agression, smell, reception & motivation
PARIETAL LOBE
The middle division of each cerebral hemisphere that controls sensory functions such as pain, touch and tempurature interpretation
OCCIPTAL LOBE
Bottom, back portion of the head.
Receives and interprets visual input
TEMPORAL LOBE
Controls hearing, smell, and taste
CENTRAL LOBE
Insula lobe. Hidden from view, deep into the lateral sulcus. Seperates the lobes
LONGITUDINAL FISSURE
Sepperates the cerebrum into right and left hemispheres
CENTRAL FISSURE/SULCUS
AKA FISSURE OF ROLANDO
Groove between the frontal and parietal lobes
LATERAL FISSURE
Deep groove between the temporal lobe below and the frontal and parietal lobes.
CHOROID PLEXUSES
Tiny masses of specialized capillaries that secrete cerebrospinal fluid.