Languages Questions

tissueAn aggregation of morphologically similar cells and associated intercellular matter acting together to perform one or more specific functions in the body. There are four basic types: muscle, nerve, epidermal, and connective

gross anatomyThe study of the structures of the body that can be seen with the naked eye. Also called macroscopic anatomy

central nervous systemThe portion of the nervous system consisting of the brain and spinal cord, to which sensory impulses are transmitted and from which motor impulses pass out, and which supervises and coordinates the activity of the entire nervous system

skeletal muscleA usually voluntary muscle made up of elongated, multinucleated, transversely striated muscle fibres, connected at either or both ends to a bone

molecular biologyThe branch of biology that deals with the formation, structure, and activity of macromolecules essential to life, such as nucleic acids, and especially with their role in cell replication and the transmission of genetic information

smooth muscleMuscle tissue that contracts without conscious control, having the form of thin layers or sheets made up of spindle-shaped, unstriated cells with single nuclei and found in the walls of the internal organs, such as the stomach, intestine, bladder, and blood vessels

connective tissue Tissue arising chiefly from the embryonic mesoderm that is characterized by a highly vascular matrix and includes collagenous, elastic, and reticular fibres, adipose tissue, cartilage, and bone. It forms the supporting and connecting structures of the body. The internal structure composed of bone and cartilage that protects/supports the soft organs, tissues, and other parts of the body.

salivaThe watery mixture of secretions from the salivary and oral mucous glands that lubricates chewed food, moistens the oral walls, and contains ptyalin

insulinA polypeptide hormone functioning in the regulation of the metabolism of carbohydrates and fats, especially the conversion of glucose to glycogen, which lowers the blood glucose level

red blood cell (RBC)A disk-shaped, biconcave cell in the blood that contains haemoglobin, lacks a nucleus, and transports oxygen and carbon dioxide to and from the tissues

mucous (membrane) or mucosaAny of the membranes lining the passages of the body, such as the respiratory and digestive tracts, that open to the outside, the cells of which secrete mucus, which lubricates the membranes and protects against infection

rateThe speed or frequency with which an event or circumstance occurs per unit of time, population, or other standard of comparison

liverA large, reddish-brown, glandular organ located in the upper right portion of the abdominal cavity that secretes bile and is active in the formation of certain blood proteins and in the metabolism of carbohydrates, fats, and proteins

enzymeNumerous proteins functioning as biochemical catalysts

pupilThe black circular opening in the centre of the iris of the eye, through which light passes to the retina

muscle tissueA kind of tissue consisting predominantly of contractile cells, causing movement of body parts and organs, and classified as skeletal, cardiac, or smooth

intakeact of taking something into the body (food, air or another substance)

mucusThe viscous, slippery substance that consists chiefly of mucin, water, cells, and inorganic salts and is secreted as a protective lubricant coating by cells and glands of the mucous membranes

neuron(e)The impulse-conducting cells that constitute the brain, spinal column, and nerves, consisting of a nucleated cell body with one or more dendrites and a single axon. Also called nerve cell

lenstransparent, biconvex body of the eye between the iris and the vitreous humor that focuses light rays entering through the pupil to form an image on the retina