• Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/98

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

98 Cards in this Set

  • Front
  • Back

Trigeminal

Sensations on face and chewing

Abducens

Crossed eyes

Facial nerve

Anterior taste buds, salivary and lacrimal glands, dysfunction = bells palsy

Vestibular cochlear

Hearing and balance

Glossopharyngeal

Back taste buds, swallowing muscles, parotid gland (sour)

Vagus

Gut feelings, heart, larynx

Acessory

Neck muscles

Hyperglossal

Tongue muscles

Ventral roots

Motor

Dorsal roots

Sensory

Where do spinal nerves merge

Intervertebral foramen

Rami

Branched nerves after intervertebral foramen

Posterior ramus

Slow twitch, smaller innervate back

Anterior ramus

Larger, innervate organs and muscles

Rami comminicantes

Interconnected through sympathetic chain

Dermatome

Each spinal nerve carry sensation in band on body

Phrenic nerve

Innervate diaphragm

4 plexuses

Cervical, brachial, lumbar, sacral

Mechanoreceptors

Change in pressure or tension

Chemoreceptors

Change in chemicals

Exteroreceptors

Cutaneous (general) receptors

Special sense receptor

Complex sensory organs

Intereceptors

Chemical /temp change in organs (blood becomes acidic when you hold breath)

Proprioceptor

Senses movement and position

Encapsulated spinal nerve

Mechanoreceptors

Unencapsulated spinal nerves

Temp, pain, light touch

Transduction

Converting stimulus to AP

Basal cells

Olfactory stem cells grow neurons

1st order of olfactory

Receptor neurons

2nd order of olfactory

Mitral cells modify and relay signals to brain

3rd order in olfactory pathway

Olfactory cortex interprets information

Which papillae doesn't taste

Filiform

Salty receptor

Detects metal ions

Sour receptors

Acids

Sweet receptor

Sugar, alcohol, amino acids

Bitter receptors

Alkaloids and nonalkaloids

Umami

Amino acid glutamate

Sweet, bitter, umami

6 coupled protein cascade

Depolarization

Triggers influx of calcium

1st order of gustation

Cranial nerve from tongue to salivary nucleus of medulla

2nd order of gustation

Medulla to thalamus

3rd order of gustation

Thalamus to gustatory cortex in insula

4th order of gustation

Appreciation of taste in hypothalamus and limbic system

Fibrous layers of eyeball

Sclera and cornea

Vascular layer of eyeball

Choroid, ciliary body, iris

Ciliary body

Controls lens shape

Neural layer

Retina

Posterior cavity of eye

Vitreous humor and haploid canal

Hayloid canal

Fetal structure

Scleral venous sinus

Aqueous humor drains to here

Imbalance of aqueous humor production

Glaucoma

What happens to ciliary muscles and the lens when looking at something far

Ciliary body relaxed lens pulled flat

What senses darkness

Photoreceptors

Retina function in low light

Rods are sensitive cones inactive

Retina function in bright light

Rods bleached and cones perceive color

What process perceives detail

Fovea centralis

Thalamus

Sorted unnecessary stuff

1st step of visual perception

Ganglion to thalamus

2nd step of visual perception

Thalamus to occipital lobe

3rd step of visual perception

Occipital lobe to interpretation areas

1st step of tracking objects

Ganglion to corpora quadrequima

2nd step of tracking objects

Signals to spinal cord/brain for eye and head movement

Inner ear

Perception

Perception of linear acceleration

Uttrice and sacule of vestibule

Scala vestibuli

Starts at oval window

Scala tympani

Ends at round window

2 boney labrynths

Scala vestibuli and Scala tympani

What are boney labyrinths filled with

Perilymph

Membrane labyrinth

Membranous sacs in boney labyrinths

What are membranous sacs filled with

Endolymph

Scala media

Cochlear duct

Steps of hearing

Sound vibrates tympanic membrane, ossicles amplify vibrations, stapes pushes oval window, (depends on audibility), pressure excited round window

What happens when a sound is below your frequency

Travels but doesn't excite hair cells

In hearing range

Vibrates through cochlear duct, vibrates basalar membrane

First step of transduction of hearing

Basilar membrane moves toward tectoral membrane (bends cilia toward tallest cillia)

2nd step of tranduction of hearing

Bending cilia opens k channels, depolarizes cell and releases neurotranamitter

3rd step of transduction for hearing

Ap in vestibulocochlear nerve

Pitch =

Frequency, where wave hits hair cell

Loudness =

Amplitude, rate of ap from hair cells

1st step in auditory neural pathway

Receptor to medulla

2nd step in auditory neural pathway

To olivary nuclei in medulla

3rd step in auditory neural pathway

Medulla to inferior colliculus

4th step in auditory neural pathway

Inferior colliculus to thalamus

5th step in auditory neural pathway

Thalamus to auditory cortex

2 sensory regions of the vestibule

Sacule and utricle

Sacule

Gravity

Utricle

Horizontal position

Function of vestibule

Send continuous ap (tonic)

Ampulla

Enlarged area at base of semicircular canal

Crista ampalaris

Part of semicircular canal that consists of Hair cells and a flexible gel called capula

1st Step of Function of semicircular canals

Endolyphs inertia causes it to lag behind moving head

2nd Step of Function of semicircular canals

Endolyphs bends capula and stereocilia

3rd Step of Function of semicircular canals

One ear depolarizes and The opposite hyperpolarizes

4th Step of Function of semicircular canals

Endolyph settles and system detects movement

Nystagmus

Reflex response of eyes, neck, and head to vestibular receptors

1st step of Equilibrium pathway

Receptors to cerebellum to brainstem

2nd step of Equilibrium pathway

Brain stem to neurons in cns

3rd step of Equilibrium pathway

Cns to motor cranial nerves