LAB PRACTICAL 1 Flashcards
what is the function of the plasma membrane/cell membrane?
controls what enters/exists the cell
what is the function of the nucleus?
houses genetic material DNA
what is the function of the nucleolus?
produces ribosomes
what is the function of the ribosome?
site of protein synthesis
what is the function of cytosol?
fluid portion that surround the organelles
what is the function of the rough endoplasmic reticulum?
synthesizes glycol proteins and phospholipids
what is the function of the smooth endoplasmic reticulum?
synthesizes lipids
what is the function of the Golgi body?
modifies, sorts, packages and transports proteins
what is the function of the Mitochondrion?
powerhouse, and generates ATP
what is the function of lysosomes?
digestive enzymes that breakdown molecules
what is the function of the centrioles?
help with cell division and mitotic spindle
what is the function of the cytoskeleton?
network of protein filaments
Function: filtration, diffusion, rapid exchange of material
Location: lungs, kidney filtration membranes, lines blood vessels
simple squamous
Function: secretion
Location: kidney tubules
simple cuboidal
Function: secretion, absorption
Location: spinal cord, brain, GI tract, kidney duct
simple columnar
Function: secretion, ciliated/non-ciliated
Location: respiratory tract
pseudostratified columnar
Function: protection, 1st line of defense against microbes
Location: superficial layer of the skin, mouth, esophagus
stratified squamous
Function: stretches to accommodate changes in volume
Location: urinary bladder
transitional
simple layer
one layer
pseudostratified
falsely layered
stratified
many layers
squamous
flat
cuboidal
cube shaped (perfect nucleus)
columnar
tall
simple squamous epithelium
single layer of flat cells, free surface at edge
simple cuboidal epithelium
single layer of cube shaped cells; pink blotches with squares surrounding it
simple columnar epithelium
single cell dominoes; column like
pseudostratified columnar epithelium
fuzzy appearance
stratified squamous epithelium
apical surface pink and basal surface cells
transitional epithelium
purple cuboidal
what are the organs of the integumentary system?
hair, skin, glands, nails
what is the function of the integumentary system?
external body covering, protects deeper tissue from injury, houses cutaneous receptors/sweat/oil glands, synthesizes vitamin D
what are the organs of the skeletal system?
bones and joints
what is the function of the skeletal system?
protects and supports body organs, provides framework, muscles use to cause movement, forms blood cells, stores minerals
what organs are part of the muscular system?
skeletal muscles
what is the function of the muscular system?
allows manipulation of the environment, locomotion, fascial expressions, maintains posture and produces heat
what are the organs of the nervous system?
brain, nerves, spinal cord
what is the function of the nervous system?
fast acting control system of the body, responds to internal and external changes by activating appropriate muscles and glands
what are the organs of the endocrine system?
thyroid gland, pineal gland, pituitary gland, adrenal gland, pancreas, ovary, testes
what is the function of the endocrine system?
glands secrete hormones that regulate process such as growth, reproduction and nutrient use by body cells
what are the organs of the cardiovascular system?
heart, blood vessels