Exam A&P Flashcards
Neuroglial
Most abundant of the nerve cells/ Support, protect insulate and flourish the neutron
Nerve Impulse
action potential
Ulnar, radial and median nerves
Supply the forearm and the hand
trapezius
Extends the neck , shrugs the shoulders
occipital lobe
Responsible for vision , most posterior lobe. Damage can cause vision loss
frontal lobe
Responisible for motor activity, personality development, emotional and behavioral expression
temporal lobe
Contains auditory cortex, interior to the frontal and parietal lobe
parietal lobe
receives all general sensory information from the body, behind the central sulcus, posterior to frontal lobe
zygomaticus
smiling muscle
frontalis
raises eyebrows and wrinkles forehead
dermatome
Area of skin innervated by a spinal nerve
CN 1
olfactory nerve- smell
projection
Brain refers sensation back to the source
ossicles
malleous, incus, stapes - 3 tiny bones inside the ear
chemoreceptors
detect change in chemicals (taste and smell
thermoreceptors
detect changes in temperature
mechanoreceptors
detect changes in pressure or movement of body fluids
nociceptors
pain receptors
olecranon process
bony point of elbow
osteocyte
bone cells that create bone tissue
saltatory conduction
Nerve impulse jumps node to node, increase speed of nerve impulse
Anatomy
study of the structure of the human body
Physiology
Branch of science that describes how the body functions
hamstrings
posterior thigh, extends the thigh at the hip and flexes at the knee
keratin
A protein found in skin , hair and nails, hardens cells, makes water reistant
biceps femoris
1 muscle that makes up the hamstrings
blood pH
7.35-7.45 (alkaline)
sympathetic nervous system
aka thoracolumbar division- fight or flight
parasympathetic nervous system
aka craniosacral division- feed or breed/ resting and digesting
sagittal plane
divides the body length wise into right and left portions
frontal plane
divides body into anterior (ventral) and posterior (dorsal) portions
transverse plane
split body up and down , superior and inferior
primary mover
muscle that does most of the work in action
synergist
muscles that help the prime mover
antagonist
muscles that oppose the action of the prime mover