Back to AI Flashcard MakerAnatomy and Physiology /HOSA: Med Term Nervous/Special Senses Part 2
HOSA: Med Term Nervous/Special Senses Part 2
This deck covers key terms and concepts related to the nervous system and special senses, focusing on anatomical structures and their functions.
midbrain & pons
conduction pathways to & from high & low brain centers on brain stem that respond to visual & auditory stimuli & reflexes of eyes & head
Tap or swipe ↕ to flip
Swipe ←→Navigate
1/50
Key Terms
Term
Definition
midbrain & pons
conduction pathways to & from high & low brain centers on brain stem that respond to visual & auditory stimuli & reflexes of eyes & head
define MEDULLA OBLONGATA
lowest part of brain stem, connected to stem that controls basic survival
define SPINAL CORD
long, fragile & tube like structure surrounded & protected by CSF & meninges
define AUTONOMIC NERVOUS SYSTEM
controls involves involuntary actions & consists of sympathetic & parasympathetic
describe SYMPATHETIC NERVOUS SYSTEM
prepares for emergencies & stress; reaction to real or imaginary danger
define PARASYMPATHETIC NERVOUS SYSTEM
returns body to normal after stress & maintains normal function
Related Flashcard Decks
Study Tips
- Press F to enter focus mode for distraction-free studying
- Review cards regularly to improve retention
- Try to recall the answer before flipping the card
- Share this deck with friends to study together
| Term | Definition |
|---|---|
midbrain & pons | conduction pathways to & from high & low brain centers on brain stem that respond to visual & auditory stimuli & reflexes of eyes & head |
define MEDULLA OBLONGATA | lowest part of brain stem, connected to stem that controls basic survival |
define SPINAL CORD | long, fragile & tube like structure surrounded & protected by CSF & meninges |
define AUTONOMIC NERVOUS SYSTEM | controls involves involuntary actions & consists of sympathetic & parasympathetic |
describe SYMPATHETIC NERVOUS SYSTEM | prepares for emergencies & stress; reaction to real or imaginary danger |
define PARASYMPATHETIC NERVOUS SYSTEM | returns body to normal after stress & maintains normal function |
define COGNITION | mental activities w/memory, thinking, & learning |
define ADNEXA OF EYES | structures outside eyeball including orbit, eye muscles, eyelids, eyelashes, conjunctiva, & lacrimal apparatus |
aka: adnexa of the eyes | adenxa oculi |
define ORBIT | bony cavity containing & protecting eyeball |
aka: orbit | eye socket |
define EYE MUSCLES | 3 pairs to create wide range of movement (superior & inferior oblique & rectus + lateral & medial rectus) |
define BINOCULAR VISION | both eyes work together to create 3D depth perception |
define CANTHUS | angle upper & lower eyelids meet |
define CILIA | small hairs of brows & lashes |
define TARSUS | framework within upper & lower eyelid to create its stiffness & shape |
aka: tarsus | tarsal plate |
define CONJUNCTIVA | transparent mucous membrane lining underside of eyelids acting as protective covering over exposed eye surface |
describe LACRIMAL APPARATUS | produce, store, & remove tears; consists of glands, fluid, canal, sac & duct |
aka: lacrimal apparatus | tear apparatus |
define LACRIMAL GLANDS | secretes tears |
describe LACRIMAL FLUID | tears; maintain eye moisture |
define LACRIMAL CANAL | duct @ inner corner of eye that collects tears & empty into lacrimal sacs |
define LACRIMAL SAC | enlargement of upper part of lacrimal duct |
aka: lacrimal sac | tear sac |
define LACRIMAL DUCT | drains excess tears into nose |
aka: lacrimal duct | nasolacrimal duct |
define EYEBALL | 1 in sphere w/ only 1/6 visible |
aka: eyeball | globe |
define SCLERA | maintains shape & protects inner layers of eye |
aka: sclera | white of the eye |
define CHOROID | opaque middle layer w/lots of blood vessels |
aka: choroid | choroid coat |
define RETINA | sensitive innermost layer that receives impulses & transmits to brain |
describe AQUEOUS HUMOR | fluid filling posterior & anterior chambers of eye to maintain eye shape & nourish intraocular; is constantly filtered & drained |
aka: aqueous humor | aqueous fluid |
define ANTERIOR CHAMBER OF THE EYE | between cornea & iris |
define POSTERIOR CHAMBER | between iris & lens |
define INTRAOCULAR PRESSURE | measurement of fluid pressure in eye regulated by rate of aqueous humor leaving eye |
define POSTERIOR SEGMENT | 2/3 eye from lens to rest of eye lined w.retina & filled w/vitreous humor |
aka: vitreous humor | vitreous gel |
define VITREOUS HUMOR | soft, clear jelly-like mass w/millions of fine fibers attached to retina surface to maintain shape |
describe RODS & CONES | receive images passed thru lens; rods = black & white; cones = color |
define MACULA | clearly defined light-sensitive area center of retina where vision sharpest |
aka: macula | macula lutea |
define FOVEA CENTRALIS | pit in middle of macula where color vision best (no rods) |
describe OPTIC DISK | where nerve endings enter optic nerves; blind bc there are no cones or rods |
aka: optic disk | blind spot |
define OPTIC NERVE | transmits impulses from retina to brain |
define UVEA | pigmented layer of eye consisting of choroid, ciliary body, & iris |