3730370
Description
Flashcards by itstinachen, updated more than 1 year ago
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Created by itstinachen
about 9 years ago
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| Question | Answer |
| CNS | central nervous system (encased by bone) - brain, spinal cord |
| PNS | peripheral nervous system (everything else) - Somatic system - Visceral system (autonomic nervous system) -> (parasympathetic, sympathetic) |
| What is the somatic nervous system? | Spinal nerves Voluntary action |
| What is the visceral system? What are the tw categories? | Autonomic nervous system (involuntary action) - Internal organ function Two categories: 1. Parasympathetic: post-stress recovery 2. Sympathetic: getting ready for stress |
| Views of the brain: DORSAL | bird's eye view |
| Views of the brain: VENTRAL | from below |
| Views of the brain: LATERAL | side view |
| Views of the brain: MEDIAL (midline) | cut in half |
| 1. dorsal 2. ventral 3. lateral 4. medial | |
| Anterior | Rostral ahead/front |
| Posterior | Caudal Behind/towards the back |
| Dorsal | Back |
| Ventral | front or belly |
| Midline | the central axis |
| Medial | towards the middle or midline |
| Lateral | towards the side |
| Ipsilateral | same side |
| Contralateral | opposite side |
| Planes through the Brain: 1. Midsagittal | section cut vertically through the brain |
| Planes through the Brain: 2. Horizontal: | section cut through horizontally |
| Planes through the Brain: 3. Coronal | horizontal from the top |
| Midsagittal Horizontal Coronal | |
| List the major parts of the CNS (4) | Cerebrum Cerebellum Brain Stem Spinal Cord |
| Cerebrum –______________ cortex - two ________________ _______________divided by the ________ _____________ (midline) - concerned with ________________ sensation and movement | cerebral cerebral hemispheres sagittal fissure contralateral |
| Cerebellum - ______ hemispheres - concerned with ___________________ motor control | two ipsilateral |
| Brain stem - most ______________ part of the brain - concerned with ____ _____________ (respiration, body temp) | primitive life functions |
| Spinal cord - responsible for ___ | conduit for info to and from the brain |
| (left to right) Cerebrum Cerebellum Brain stem Spinal Cord Sagittal fissure Brain stem | |
| Major brain divisions: 1. Forebrain - - 2. Midbrain: - - 3. Hindbrain - - | 1. cerebral cortex thalamus (retina) 2. midbrain - tectum (sup. & inf. colliculus) - tegmentum 3. Hindbrain - cerebellum and pons - medulla |
| The spinal cord has __ segments Each segment has a pair of _____ ______ Each spinal nerve consists of a: 1. ___________ root (sensory) 2. _________ root (motor) | 31 spinal nerves dorsal root ventral root |
| The spinal cord has five regions, with different numbers of spinal segments: 1. 2. 3. 4. 5. | 1. Cervical – 8 2. Thoracic – 12 3. Lumbar – 5 4. Sacral – 5 5. Coccygeal - 1 |
| What is a dermatome? | Skin surface sensory region |
| How many pairs of cranial nerves are there? What is their responsibility? | 12 pairs they take care of function in the head |
| Meninges - "covering" (greek) What are the 3 meninges that cover the brain? | 1. Dura mater "hard mother" (thick like leather) 2.Arachnoid "spider" (greek) 3. Pia Mater "gentle mother" |
| The ventricular system is a set of ____interconnected cavities (ventricles) in the brain, where the __________________ is produced. | 4 cerebrospinal fluid (CSF) |
| Most _____________ is found within the ventricular system, in the brain. Spaces within the brain that contain CSF are called _________. The ventricular system is a series of ventricles and canals that move CSF within the brain and transport in out to the _____________space. | choroid plexus ventricles subarachnoid |
| Your ventricular system contains about ____ml of CSF. You produce about _____ml/day | 150 500 |
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