Questions and Answers20
Hypodermis - ANSWERSthe layer of skin beneath the dermis, which serves as a storage
repository for fat
free nerve endings - ANSWERSrespond to pain and temperature
Meissner's (tactile) corpuscles - ANSWERSLocated in the dermal papillae
"light touch" receptors
Pacinian (lamellated) corpuscles - ANSWERSpressure-sensitive cells found mostly in the
subcutaneous layer
Ruffini endings (bulbous corpuscles) - ANSWERSslowly adapting receptors respond to stretch
and movement.
merkel discs - ANSWERSlight touch receptors in deep layers of epidermis
root hair plexus - ANSWERSof sensory nerves surrounds the base of each hair follicle and
detects the movement of the shaft.
eccrine sweat glands - ANSWERSfound in palms, soles of the feet, and forehead
apocrine sweat glands - ANSWERSfound in axillary and anogenital areas
,sebaceous glands - ANSWERSoil glands in the skin
Anatomy - ANSWERSThe study of body structures of an organism an their relationship to each
other
Gross Anatomy - ANSWERSlarge body structures visible without the aid of a microscope
Microscopic Anatomy - ANSWERSSmall body structures only visible with the aid of a
microscope.
Developmental Anatomy - ANSWERSanatomical changes throughout the life of an organism
Vital Functions of the organ systems - ANSWERS-separation of internal/external environments
- movement
- responsiveness to stimuli
- digestion/absorption
- metabolism
- excretion
- growth
Non vital to individual, but vital to species - ANSWERSreproduction
How many major body systems are there? - ANSWERS11
Homeostasis - ANSWERSdynamic state of equilibrium and focuses on balance.
Survival Needs for homeostasis - ANSWERSnutrients
, ions
water
oxygen
normal body temp
appropriate atompsheric pressure
Homeostasis is maintained by - ANSWERSnegative feedback (response to decrease or eliminate
the stimulus ex. temp - your temp increases, you sweat to release heat, your body temp
decreases. As your body temp decreases, the amount of sweat decreases)
positive feedback (stimulus causes a response and enhances the response until it stops. ex.
bleeding - damage blood vessel, platelets adhere to damaged site, release chemical to attract
more platelets, plates adhere to damaged site and so on.)
Standard Anatomical Position - ANSWERSerect body, feet slightly apart, palms forward, thumbs
pointing away from body
Superior - ANSWERStop part of the trunk (cranial)
Inferior - ANSWERStoward the bottom
Cranial vs Caudal - ANSWERSCranial - toward head
Caudal - toward tail or tailbone
Posterior or Dorsal - ANSWERSback
Anterior or ventral - ANSWERSbelly region