What the brain does
What is cranial nerve VI and what is its function?
- Abducens Nerve: Eye Movement
What is the cranial nerve XI and what is its function?
- Accessory (or spinal accessory) nerve: head and shoulder movement
What are the three different layers of the meninges?
- Dura Mater - arachnoid - Pia Mater
What is cranial nerve VII and what has its function?
- Facial nerve: Facial expression, taste, secretions of the salivary and lacrimal glands
What is the cranial nerve IX and what is its function?
- Glossopharyngeal nerve: Taste, sensory fibers of pharynx and tongue, swallowing, and secretions of parotid gland
What can happen if we have ICP or herniation in the area of the medulla oblongata?
- It could be life threatening like instantly
What part of the body is the cerebellum constantly receiving messages from?
- Joints, tendons, muscles
What is the cranial nerve XII and what is its function?
- Movement of the tongue
What is the cranial nerve III and what is its function?
- Oculomotor nerve: Contraction of the iris and eye muscles
What is cranial nerve I and what is its function?
- Olfactory nerve: Sense of smell
What is the cranial nerve II and what is its function?
- Optic Nerve: Sight
Which part of the brain has the respiratory centers that work to produce normal breathing patterns?
- Pons
What does the cerebellum contain?
- Roughly 80% of the brains neurons
What does the brainstem consist of?
- The brain stem consist of the midbrain's pons, and medulla oblongata
What does the medulla oblongata contain?
- The medulla oblongata contains vital centers connected with respiration, heartbeat, and vasomotor activity (the control of smooth muscle activity in blood vessel walls).
What is cranial nerve V and what is its function?
- Trigeminal Nerve: sensory nerve to face, chewing
What is cranial nerve IV and what is its function>
- Trochlear Nerve: Eye movement
What was the cranial nerve X and what is its function?
- Vagus Nerve: Motor fibers to glands producing digestive enzymes, heart rate, muscles of speech, gastrointestinal motility, respiration, swallowing coughing, and vomiting reflex
What is cranial nerve VIII and what is its function?
- Vestibulocochlear (or auditory) nerve: hearing and balance
What is the hippocampus do?
- learning and long term memory
What do the ventricles of the brain do?
- manufacture cerebral spinal fluid
What are the functions of the CSF?
- protects the the structures of the brain like in a shock absorber; acts as a barrier to infectious organisms, toxic metabolites, and some drugs that enter the blood; floats the brain reduce pressure at its base; and helps maintain relatively constant intracranial pressure.
What is gray matter responsible for?
- responsible for our intellectual activities
What governs the wakefulness and sleep?
- reticular formation
What is the responsibility of the midbrain?
- vital ref.ex or involuntary reaction center visual and auditory reflexes
What does the cerebellum regulate?
- voluntary movement (completion of skilled movements) and balance - Coordinates muscle movement.
What is the cerebrum's responsibilities?
-Cortex that is responsible for movement
What does the Pia mater adhere to>
A delicate layer that adheres to the brain sand spinal cord
Where is the subarachnoid space located?
between arachnoid and pia mater
What is the biggest part of the brain?
cerebrum
What is the cerebrum made up of?
gray matter
What is the cerebrum divided into?
left and right hemispheres