biology exam 1 Flashcards
Superior
toward the head end of the body;
anterior (ventral)
front
medial
toward the middle or center
lateral
a position away from the midline of the body
intermediate
used to point to something that is between two structures
ipsilateral
structures on the same side of the body or brain (left or right)
contralateral
something happening on opposite sides of the body
proximal
toward or nearest the trunk or the point of origin of a part
distal
sites located away from a specific area, most often the center of the body.
superficial
closer to the surface of the body.
parietal
along the top and sides of the skull.
visceral
which are the soft internal organs of the body, including the lungs, the heart, and the organs of the digestive, excretory, reproductive, and circulatory systems.
what are the main body cavities?
the cranial cavity, the vertebral cavity, the thoracic cavity, the abdominal cavity, and the pelvic cavity
plasma membrane
provides protection for a cell
cytosol
contains dissolved nutrients, helps break down waste products, and moves material around the cell.
nucleus
serves both as the repository of genetic information and as the cell’s control center.
ribosomes
the site of protein synthesis in the cell
golgi complex
prepares proteins and lipid (fat) molecules for use in other places inside and outside the cell.
lysosome
the digestive system of the cell
peroxisome
carrying out oxidative reactions using molecular oxygen.
mitochondria
which generates ATP by utilizing the energy released during the oxidation of the food we eat.
cytoskeleton
provides a structural framework for the cell
flagella
enables movement
cilia
move microbes and debris up and out of the airways
centrosome
involved in the process of cell division
centrioles
Organize microtubules
cell inclusions
serve as storage compartments
what are the phases of the mitosis
prophase, metaphase, anaphase and telophase and cytokinesis.
what is happening during prophase
the chromosomes condense and centrosomes move to opposite sides of the nucleus
what is happening during metaphase
the nucleus dissolves and the cell’s chromosomes condense and move together,
what is happening during anaphase
each pair of chromosomes is separated into two identical, independent chromosomes.
what is happening during telophase
a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm.
what is happening during cytokinesis
The cell membrane pinches in at the cell equator, forming a cleft
what are the 4 main types of tissues
connective tissue, epithelial tissue, muscle tissue, and nervous tissue
what are some functions of epithelial tissues
protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception.
what are the three functional classifications of exocrine glands?
merocrine, apocrine, and holocrine
where do you find exocrine glands?
in the stomach, pancreas, and intestines
what are some functions of connective tissues?
supports, protects, and gives structure to other tissues and organs in the body.
what are the 3 basic elements of connective tissue?
ground substance, fibers, and cells,
name at least 4 types of connective tissues as well as their function and location
BLOOD, BONE CELLS, CARTILAGE and ADIPOSE
what are the 3 kinds of muscle tissue?
Skeletal, smooth and cardiac.
what are the differences between the types of muscle tissue?
Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions.
name the 5 layers of the epidermis
stratum basale.
stratum spinosum.
stratum granulosum.
stratum lucidum.
stratum corneum.
what are 2 parts of the dermis?
papillary and reticular dermis.
4 types of bone cells
osteoblasts, osteocytes, osteoclasts and osteogenic cells
function of osteoblasts
bone formation
function of osteocytes
Known for the remodeling process of the bone
function of osteoclasts
bone resorption
function of osteogenic cells
develop into osteoblasts
what makes up the axial skeleton
the bones in your skull, neck, ears, vertebrae, and rib cage
what makes up the pectoral girdle?
the clavicles (collarbones) and the scapulae (shoulder blades).
example of gliding joint
wrist
example of hinge joint
elbow, knee
example of condyloid joint
Hands
example of ball and socket joint
shoulder