Anatomy Sg 2010
Transcript of Anatomy Sg 2010
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anatomy- the science of the structure of living organisms
physiology- the science of the functioning of living organisms
cell- the basic biological unit of living organisms, containing a nucleus and a variety oforganelles enclosed by a limiting membrane
tissues- a group of similar cells specialized to preform a specific function; primarytissue types are epithelial, connective, muscle, and nervous tissues
organ- a part of the body formed of two or more tissues that preforms a specialized
function
organ system- a group of organs that work together to preform a vital body function! -Integumentary- skin! ! -protection! -Skeletal- bones, cartilages, ligaments, and joints! ! -supports and protects! -Muscular- muscles! ! -movement! -Nervous- brain, spinal cord, nerves, and sensory receptors! ! -fast acting control! -Endocrine- hormones! ! -regulate body! -Cardiovascular- heart and blood vessels! ! -transports oxygen in blood! -Lymphatic- lymphatic vessels, lymph nodes, spleen, and tonsils! ! -cleans blood, houses immunity cells (think lysol)! -Respiratory- nasal passages, pharynx, larynx, trachea, bronchi, and lungs! ! -supplies body with oxygen! -Digestive- mouth, esophagus, stomach, small and large intestine, and rectum! ! -breaks down food for absorption! -Urinary- kidneys, ureters, bladder, and urethra! ! -removes nitrogen wastes! -Reproductive- male- penis ; female - vagina! ! -produce offspringorganism- an individual living thing
homeostasis- a state of body equilibrium or stable internal environment of the body
1Anatomy without Lab
Midterm Study Guide
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hematopoiesis- formation of blood cells
negative feedback- feedback that causes the stimulus to decline or end
anatomical position- standing erect, limbs extended, palms facing forward
Directional Terms
Superior (A)- above, towards the head
Inferior (H)- below, towards the feet
Anterior (B) (ventral)- in front of the body
Posterior (C) (dorsal)- behind the body
Proximal (F)- closer to the root of the limb
Distal (G)- farther from the root of the limb
Superfical (I)- towards the surface
Deep (J)- farther from the surface
right and left- their right and left; not yours
Sagittal- left and right halves! -midsagittal / median- equal left and right halvesCoronal- anterior and posterior halves
Transverse (cross)- superior and inferior halves
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dialysis- diffusion of solute(s) through a semipermeable membrane
filtration- the passage of a slovent and dissolved substances through a membrane orfilter
active transport- net movement of a substance across a membrane against aconcentration gradient; requires release and use of cellular energy
passive transport- membrane transport that do not require cellular energy
diffusion- the spreading of particles in a gas or solution with a movement towarduniform distribution of particles
osmosis- the diffusion of a solvent through a membrane from a dilute solution into amore concentrated one
microvilli- the tiny projections on the free surfaces of some epithelial cells; increasesurface area for absorption
pinocytosis- the engulfing extracellular fluid by cells
phagocytosis- the ingestion of solid particles by cells
mucous membranes (mucosa)- membrane that forms the lining of body cavities open
the the exterior (digestive, respiratory, urinary, and reproductive tracts)
Skin
Superficial to deep:
stratum corneum- 20/30 cell layers thick; always dead; horny layer
stratum lucidum-thin layer of flat cells; clear
stratum granulosum- begin to die; absorbs keratin
stratum germinativum- cell division; mitosis; 25% melanocytes
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dermis- the deep layer of the skin; composed of dense irregular connective tissue
melanocyte- a cell that produces melanin
melanin- the dark pigment synthesized by melanocytes; responsible for skin color
keratin- a tough, insoluble protein found in tissues such as hair, nails, and epidermis ofthe skin; waterproof
sweat glands- secrete sweat
apocrine glands- less numerous sweat gland; salt, water, protein; BO- armpits/ gooch
eccrine glands- sweat gland; salt and water
sebaceous glands- secretes oils; attached to hair follicle;
hair follicles- surrounds hair shaft int he dermis
sensory receptors- nerve endings in the skin
papillary layer- dermal papili; causes finger prints
hair bulb- bulb at the bottom of the hair shaft
sebum- the oily secretion of sebaceous glands
Burns-1st degree- sunburn, mild; epidermis damage and redness! 2nd degree- bad sunburn; epidermis and dermis damage; partial thickness;! ! ! most painful! 3rd degree- black, grey, white; full thickness; skin grafting;! ! ! painlessacne- inflammatory disease of the skin; infection of the sebaceous glands
cutaneous membrane- the skin; composed of epidermal and dermal layers
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Bones and Joints
Articulations-Joints
1) Diarthroses- synovial- movable
-Hinge (knee), Eliptical (wrist), Ball and Socket (shoulder), Saddle (thumb), Pivot (neck)
2) Amphiarthroses- cartilaginous- slightly movable-Vertebrae, Pubic Synthesis
3) Synarthroses- fibrous- immovable-Sutures
synovial membrane- membrane that lines the capsule of a synovial joint
visceral- pertaining to the the internal part of a structure or the internal organs
parietal- pertaining to the walls of a cavity
long bone- femur, tibia, humorous
short bone- carpals, tarsals
flat bone- skull (8 bones)
irregular bone- vertebrae
epiphysis- end of bone
periosteum- thin superficial layer
diaphysis- shaft of the bone
epiphyseal plate- growth plate
compact bone- very dense bone; calcium
hyaline cartilage-(articular) covers joints
compound fractures- a fracture in which the bone is sticking through the skin
ossification- process of bone formation
osteoclasts- large cells that resorb or break down bone matrix
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hematoma- a localized swelling filled with blood
fibrocartilage callus- a temporary formation of fibroblasts and chondroblasts whichforms at the area of a bone fracture as the bone attempts to heal itself
foramen- opening/ hole! -foramen magnum- skull (spine)! -mental foramen- jaw (nerves)! -Foramen ovale- skull (nerves)sinus- air filled cavity
ramus- a branch of a bone
facet- flat surface
fossa- depression! -olecranon fossa (humorous)tubercle- small rounded projection! -greater tubercle (humorous/ shoulder)trochanter- large irregular projection! -greater trochanter (hip)tuberosity- large rounded projection! -tibial tuberosity (knee)acromion- the outermost point of the spine of the shoulder bladefontanels- soft spots on a baby's skull
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http://en.wikipedia.org/wiki/Healinghttp://en.wikipedia.org/wiki/Healinghttp://en.wikipedia.org/wiki/Bonehttp://en.wikipedia.org/wiki/Bonehttp://en.wikipedia.org/wiki/Bone_fracturehttp://en.wikipedia.org/wiki/Bone_fracturehttp://en.wikipedia.org/wiki/Chondroblasthttp://en.wikipedia.org/wiki/Chondroblasthttp://en.wikipedia.org/wiki/Fibroblasthttp://en.wikipedia.org/wiki/Fibroblast -
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Muscle
skeletal muscle- a muscle that is connected at either or both ends to a bone and somove parts of the skeleton
striated muscle- voluntary muscle
smooth muscle- Involuntary muscle
cardiac muscle- muscle tissue of the heart
intercalated disks- membrane separating adjacent cells in cardiac muscle fibers
acetylcholine- a neurotransmitter
sliding filament theory- a process used by muscles to contract
neuromuscular junction- the junction between a nerve fiber and the muscle it supplies
antagonist- muscles that move in opposition to a prime mover muscle
synergist- muscles cooperating with another to produce a desired movement
prime mover- (agonist) a muscle that bears the primary responsibility for causing acertain movement
mastication- movement of chewing your food
Nerves
synapse- the region of communications between two neurons
neuron body- region of the cell where the nucleus is located
dendrites- the branching extensions of neurons that carry impulses to the cell body
axon- neuron process that carries impulses away from the cell body; efferent process
motor neuron- controls the muscles in reflex
association neuron- (interneuron) connect sensory neurons to motor neurons
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http://en.wikipedia.org/wiki/Cardiac_musclehttp://en.wikipedia.org/wiki/Cardiac_muscle -
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diagrams11
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Nerve Tissue Simple Squamous Epithelium Simple Cuboidal Epithelium
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Sudorferous Gland
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NO ACTUAL DIAGRAM THAT
CONTAINS ALL OF THESE
possible places to study from:
Lab Manual:
pg 68
pg 78pg 86
pg 96
pg 98
pg 103
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LUMBAR
THORACIC
CERVICAL
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sarcomere
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