Dictionary

All Word
adrenaline Noun a catecholamine secreted by the adrenal medulla in response to stress, also known as epinephrine
Adrenalin Noun a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin)
apophysis Noun (anatomy) a natural outgrowth or projection on an organ or body part such as the process of a vertebra
apophysis Noun (botany) a natural swelling or enlargement: at the base of the stalk or seta in certain mosses or on the cone scale of certain conifers
autosome Noun any chromosome that is not a sex chromosome
acentric chromosome Noun a chromosome lacking a centromere
acrocentric chromosome Noun a chromosome with the centromere near one end so that one chromosomal arm is short and one is long
afferent nerve Noun a nerve that passes impulses from receptors toward or to the central nervous system
auditory center Noun the part of the brain (in a fold of the cerebral cortex of the temporal lobe on both sides of the brain) that receives impulses from the ear by way of the auditory nerve
afferent fiber Noun a nerve fiber that carries impulses toward the central nervous system
acanthocyte Noun an abnormal red blood cell that has thorny projections of protoplasm
aster Noun star-shaped structure formed in the cytoplasm of a cell having fibers like rays that surround the centrosome during mitosis
aster Noun any of various chiefly fall-blooming herbs of the genus Aster with showy daisylike flowers
ameloblast Noun a cell from which tooth enamel develops
afferent neuron Noun a neuron conducting impulses inwards to the brain or spinal cord
adipose cell Noun cells composed of fat
anisogamete Noun either of a pair of unlike gametes especially those unlike in size
astroglia Noun tissue consisting of large stellate neuroglial cells
astrocyte Noun comparatively large neuroglial cell
akaryocyte Noun a cell without a nucleus (as an erythrocyte)
acrosome Noun a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg
acaryote Noun a cell without a nucleus (as an erythrocyte)
axon Noun long nerve fiber that conducts away from the cell body of the neuron
axone Noun long nerve fiber that conducts away from the cell body of the neuron
auditory area Noun the cortical area that receives auditory information from the medial geniculate body
auditory cortex Noun the cortical area that receives auditory information from the medial geniculate body
accessory nerve Noun arises from two sets of roots (cranial and spinal) that unite to form the nerve
apparatus urogenitalis Noun the system that includes all organs involved in reproduction and in the formation and voidance of urine
archipallium Noun the olfactory cortex of the cerebrum
adrenal cortex Noun the cortex of the adrenal gland
adrenal medulla Noun the medulla of the adrenal gland
aqueductus cerebri Noun a canal connecting the third and fourth ventricles
arachnoid membrane Noun the middle of the 3 meninges
autonomic nervous system Noun the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands
anterior pituitary Noun the anterior lobe of the pituitary body
anterior pituitary gland Noun the anterior lobe of the pituitary body
adenohypophysis Noun the anterior lobe of the pituitary body
area 17 of Brodmann Noun the part of the occipital cortex that receives the fibers of the optic radiation from the lateral geniculate body and is the primary receptive area for vision
amygdala Noun an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum
amygdaloid nucleus Noun an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum
abducent nerve Noun a small motor nerve supplying the lateral rectus muscle of the eye
abducens Noun a small motor nerve supplying the lateral rectus muscle of the eye
abducens nerve Noun a small motor nerve supplying the lateral rectus muscle of the eye
acoustic nerve Noun a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
association area Noun cortical areas that are neither motor or sensory but are thought to be involved in higher processing of information
auditory nerve Noun a composite sensory nerve supplying the hair cells of the vestibular organ and the hair cells of the cochlea
association cortex Noun cortical areas that are neither motor or sensory but are thought to be involved in higher processing of information
abdominal nerve plexus Noun a large plexus of sympathetic nerves in the abdomen behind the stomach
armpit Noun the hollow under the arm where it is joined to the shoulder
axilla Noun the hollow under the arm where it is joined to the shoulder