A/P Brain and Spinal Cord
Order by
46 terms
Terms | Definitions |
|---|---|
 Thalamus | Gateway to the Cerebrum (cerebral cortex) Sorts/edits/relays info, recieves (afferent) impuleses from all senses/ parts of the body 80% of diecephalon, Mediator |
| Cerebellum | Motor Command Center --subconsiously provides precise timing and patterns of skeletal muscle contraction |
| Cerebrum | Exectuive suite |
| Brain Stem | Survival Center associated with 10 of the 12 cranial nerves |
| Hypothalamus | Visceral Command Center Autonomic control center for many visceral functions (BP, digestive tract motility) + center of emotional response (fear, rage, biological rhythms) |
| The brain stem consists of the | Midbrain, Medulla and Pons |
| Spinal Cord | Central cavity surrounded by a grey matter core - external white matter composed of myelinated (white) fiber tracts |
| Ventricles of the Brain | conected to one another and to the central canal of the spinal cord, filled with cerebrospinal fluid |
| Gyri | Ridges |
| Sulci | Shallow Grooves |
| Fissures | Deep Grooves |
| Central sulcus | Separates the crecentral gyrus of the frontal lobe and the postcentral gyrus of the parietal lobe |
| Longitudinal fissure | Separates the 2 hemispheres of the brain |
| Transverse cerebral fissure | separates the cerebrum and the cerebellum |
| Cerebral Cortex | Site of the conscious mind: awareness, sensory perception, voluntary motor initiation, communication, memory storage -- each hemisphere is contralateral (oppostite) and there is lateralization of the hemispheres (not same) |
| association area of cerebral cortex | integrate diverse information --concious behavior involves the entire cortex |
| Left and right hemispheres communicate.. | .. via fiber tracts in the cerebral white matter |
| functions of the basal nuclei | influence muscular control, help regulate attn/cognition, Regulate intensite of slow/sterotyped movements, |
| Diencephalon | Thalamus, Hypothalamus, Epithalamus |
| Medulla oblongata | adjusts force and rate of heart contraction, resp rhythm, vomiting, hiccuping, swallowing, coughing ---joins spinal cord at foramen magnum |
| EEG | records electrical activity of the brain -- can diagnose brain lesions, tumors, infarcts |
| Language implementation system | Broca's and Wernike's area |
| Declarative memory | factual memory, related to our concious thoughts and language ability |
| nondeclarative memory | acquired though experience and repetition, hard to unlearn,(habits) |
| number of spinal nerves | 31 pairs |
| cauda equina | collection of nerve roots at the inferior end of the vertebral canal (after the conus medullaris) |
| nociceptors | sensitive to pain-causing stimuli (heat/cold, excessive pressure, inflam chemicles |
| Exteroceptors | respond to stimuli arising OUTSIDE the body, receptors in the skin for, Touch, Pressure, Pain, Temp |
| Interoceptors | respond to Stimuli arising in the internal viscera sensitive to tissue stretch, chemical/temp changes |
| Proprioceptors | respond to stretch in skeletal muscles, tendons |
| plexuses | interlacing nerve networks |
| Rami | branch of a spinal nerve |
| Hilton's Law | any nerve serving a muscle that produces movement at a joint also innervates the joint and the skin over the joint |
| Inborn (intrinsic) reflex | a rapid, involuntary, predictable motor response to a stimulus |
| the hypothalamus (A) | is the thermostat of the body because it regulates temp |
| Category of memory involved when playing the piano | (B)Procedural |
| the anteriolateral pathways | (C) are involved in the emotional aspect of perception |
| the white matter of the spinal cord contains | (C) myelinated and unmyelinated nerve fibers |
| Spastic paralysis suggests involvement of the | (A) upper motor neurons |
| not an example of an exteroceptor | (E) baroreceptor |
| starting at the spinal cord, the subdivisions of the brachial plexus are (in order): | (a) Roots, trunks, divisions and cords |
| Spinal nerves exiting the cord from the level of L4 to S4 form the | (C) sacral plexus |
| A reflex that causes muscle relaxation and lengthening in response to muscle tension is called | (A) golgi tendon reflex |
| the cranial nerve with a dual origin (brain and spinal cord) is the | (B) accessory |
| The cranial nerves that have neural connections with the tongue include all EXCEPT the | (D) trochlear |
| Feeling a gentle caress on your arm would likely involve all the following EXCEPT | (C) pacinian corpuscles |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.