HESI Histology

define histology

the study of tissues

define tissue

group of cells that act together to perform specific functions

what are the four types of tissue?

epithelial, connective, muscle, nervous

what is the function of epithelial tissue?

covers, lines, and protects the body and its internal organs

what is the function of glandular epithelial tissue?

secretes substances such as mucus, enzymes, and hormones

what is the most abundant tissue in the body?

connective tissue

function of connective tissue

forms the framework of the body, providing support and structure for the organs

types of connective tissue

fibrous (areolar, adipose, reticular, dense), bone, cartilage, and blood

what is nervous tissue

composed of neurons and connective tissue cells called neuroglia

function of neurons

initiate and conduct nerve impulses

what are neuroglia

connective tissue cells which support neurons

what is the function of muscle tissue?

has the ability to contract or shorten and lengthen

classification of muscle

voluntary (skeletal muscles) or involuntary (smooth muscle and cardiac muscle)