body language Flashcards
Layer of Epidermis from deep to superficial
Stratum Basale
Stratum Spinosum
Stratum Granulosum
Stratum Lucidum
Stratum Corneum
deepest epidermis layer
Stratum basale
old stratum basale cells
stratum spinosum
old stratum spinosum cells
stratum granulosum
occurs only in thick, hairless skin
stratum lucidum
toward or at the midline of the body; on the inner side of
Medial
away from the midline of the body; on the outer side of
lateral
between a more medial and a more lateral structure
intermediate
close to the origin of the body part or point of attachment to a limb to the body trunk
proximal
farther from the origin of a body part or the point of attachment of a limb to the body trunk
distal
toward or at the body surface
superficial
away from the body surface; more internal
deep
divides the body (or organ) into left and right parts.
sagittal section
divides the body (or organ) into equal left and right parts.
median, or midsagittal, section
divides the body (or organ) into anterior and posterior parts.
frontal, or coronal, section
divides the body (or organ) into superior and inferior parts.
transverse, or cross, section
away from the head end or toward the lower part of a structure or
the body; below
Inferior
(caudal):
toward the head end or upper part of a structure or the body; above
toward the head end or upper part of a structure or the body; above
toward or at the front of the body; in front of
ventral(anterior)
toward or at the backside of the body; behind
dorsal(posterior)
Function of the Body Membranes
- Body membranes cover surfaces
- line body cavities, and form protective
- (and often lubricating) sheets around organs.
two major groups of body membranes
epithelial and connective tissue membranes
what are under the epithelial membranes
- Cutaneous membrane
- Mucous membrane
- Serous membrane
represented by synovial membranes.
connective tissue
generally called the skin or integumentary system, is the outer covering that we all rely on for protection.
The cutaneous membrane
Specific serous membranes
peritoneum
pleura
pericardium
Areolar connective tissue only
- Lines fibrous capsules surrounding joints
- Line small sac of connective tissue called bursae and the tube-like tendon sheaths
synovial membrane
Deep to dermis is the
hypodermis
responsible for the toughness of the dermis and for binding water to keep it hydrated
collagen
Both collagen and elastic fibers are found in the dermis
reticular layer
Projections called dermal papillae Pain receptors and touch receptors Capillary loops for nutrients
Result in fingerprints
papillary layer
give skin elasticity when we are young but lessens as we age along with collagen
elastic fibers
exocrine glands - Release their secretions to the
skin surface via ducts
cutaneous glands
Produce oil - sebum
- Lubricant for skin
- Kills bacteria
- Prevents hair from becoming
brittle
- Most with ducts that empty into
hair follicles
- Glands are activated at puberty
sebaceous glands
sudoriferous glands - Widely distributed in skin
sweat glands
Open via duct to pore on skin surface
eccrine
Ducts empty into hair follicles
apocrine
