Atlas de Anatomia do Corpo Humano - Central

The atlas of human body

Synapses
Synapses

Specialized junctions at which a neuron communicates with a target cell. At classical synapses, a neuron's presynaptic terminal releases a chemical transmitter stored in synaptic vesicles which diffuses across a narrow synaptic cleft and activates receptors on the postsynaptic membrane of the target cell. The target may be a dendrite, cell body, or axon of another neuron, or a specialized region of a muscle or secretory cell. Neurons may also communicate via direct electrical coupling with ELECTRICAL SYNAPSES. Several other non-synaptic chemical or electric signal transmitting processes occur via extracellular mediated interactions.

Motor Endplate
Motor Endplate

The specialized postsynaptic region of a muscle cell. The motor endplate is immediately across the synaptic cleft from the presynaptic axon terminal. Among its anatomical specializations are junctional folds which harbor a high density of cholinergic receptors.

Hand
Hand

Cerebrospinal Fluid
Cerebrospinal Fluid

Ascitic Fluid
Ascitic Fluid

The serous fluid of ASCITES, the accumulation of fluids in the PERITONEAL CAVITY. Peritoneal Lavage;

Hypothalamus, Posterior
Hypothalamus, Posterior

The part of the hypothalamus posterior to the middle region consisting of several nuclei including the medial mamillary nucleus, lateral mamillary nucleus, and posterior hypothalamic nucleus (posterior hypothalamic area). The posterior hypothalamic area is concerned with control of sympathetic responses and is sensitive to conditions of decreasing temperature and controls the mechanisms for the conservation and increased production of heat.

Hypothalamus, Middle
Hypothalamus, Middle

That middle portion of the hypothalamus containing the arcuate, dorsomedial, and ventromedial nuclei, and the tuber cinereum. The pituitary gland can also be considered part of the middle hypothalamic region.

Hypothalamus, Anterior
Hypothalamus, Anterior

The front portion of the HYPOTHALAMUS separated into the preoptic region and the supraoptic region. The preoptic region is made up of the periventricular gray matter of the rostral portion of the third ventricle and contains the preoptic ventricular nucleus and the medial preoptic nucleus. The supraoptic region contains the PARAVENTRICULAR HYPOTHALAMIC NUCLEUS, the SUPRAOPTIC NUCLEUS, the ANTERIOR HYPOTHALAMIC NUCLEUS, and the SUPRACHIASMATIC NUCLEUS.

Basal Ganglia
Basal Ganglia

Large subcortical nuclear masses derived from the telencephalon and located in the basal regions of the cerebral hemispheres.

Chromosomes, Human
Chromosomes, Human

Very long DNA molecules and associated proteins, HISTONES, and non-histone chromosomal proteins (CHROMOSOMAL PROTEINS, NON-HISTONE). Normally 46 chromosomes, including two sex chromosomes are found in the nucleus of human cells. They carry the hereditary information of the individual.

Lateral Ligament, Ankle
Lateral Ligament, Ankle

There are two lateral ligaments of the ankle - internal and external. The internal lateral ligament is attached to the apex and anterior and posterior bodies of the inner malleolus and inserted into the navicular bone, the inferior calcaneo-navicular ligament, the sustentaculum tali of the os calcis, and the inner side of the astragalus. The external lateral ligament, also called the lateral collateral ligament, consists of three distinct fasciculi - the calcaneofibular, the anterior talofibular, and the posterior talofibular.

Carotid Arteries
Carotid Arteries

Either of the two principal arteries on both sides of the neck that supply blood to the head and neck; each divides into two branches, the internal carotid artery and the external carotid artery.

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