Body Structure Chapter 4 Flashcards
Chromatin
Structural component of the nucleus,composed of nucleic acids and proteins.
Chromosome
Threadlike structures within the nucleus composed of DNA that carries hereditary information encoded in genes.
DNA
Molecule that holds genetic information capable of replicating and producing an exact copy whenever the cell divides
Metabolism
Sum of all physical and chemical changes that take place in a cell or an organism
Organelle
Cellular structure that provides a specialized function, such as the nucleus, ribosomes, lysosomes, ect.
Hist/o
Tissues
Epithelial tissue
Covers surfaces of organs, eg epidermis or outer layer of skin
Connective tissue
Supports and connects other body tissues eg. cartilage, fat, blood, and bones
Muscle tissue
Contractile tissue, responsible for movement
Nervous tissue
Transmits electrical impulses as it relays information throughout the body
Coronal plane
Frontal, divides into anterior and posterior.
Transverse plane
Horizontal, top and bottom sections
Midsagittal plane
Left and right
Abduction
Away from the midsagittal plane
Adduction
Towards the midsagittal plane
Medial
Pertaining to the midline of the body
Lateral
Pertaining to a side
Superior (cephalad)
Above
Inferior (caudal)
Below
Proximal
Nearer to the center
Distal
Further from the center
Anter/o
Front
Posterior (dorsal)
Back
Parietal
Pertaining to the outer wall of the body cavity
Visceral
Pertaining to internal organs
Prone
Lying face down
Supine
Lying face up
Inversion
Turning inward
Eversion
Turning outward
Palmar
Pertaining to the palm of the hand
Plantar
Pertaining to the sole of the foot
Superficial
Toward the surface of the body (external)
Deep
Away from the surface of the body (internal)
Kary/o or nucle/o
Nucleus
Caud/o
Tail
Cephal/o
Head
Dist/o
Far
Dors/o
Back of the body
Infer/o
Lower