The Definitive Guide to human anatomy meaning

ankle joint – joint that separates the leg and foot parts on the lessen limb; formed by the articulations among the talus bone from the foot inferiorly, and the distal stop in the tibia, medial malleolus on the tibia, and lateral malleolus on the fibula superiorly.

arcuate line from the ilium – clean ridge located in the inferior margin on the iliac fossa; sorts the lateral portion of the pelvic brim.

corpus cavernosum – possibly of two columns of erectile tissue inside the penis that fill with blood for the duration of an erection.

cervical enlargement – region on the ventral (anterior) horn with the spinal cord which has a much larger population of motor neurons with the greater quantity of and finer Charge of muscles in the upper limb.

mobile membrane – membrane surrounding all animal cells, composed of a lipid bilayer interspersed with various molecules; often called plasma membrane.

anterior column – white matter between the anterior horns in the spinal cord made up of many various groups of axons of each ascending and descending tracts.

caudal – describes a posture under or decrease than A further Element of the body good; in close proximity to or toward the tail (in humans, the coccyx, or lowest A part of the spinal column); also generally known as get more info inferior.

Anatomy and physiology both of those are relevant to the structure and functioning procedure of the human body. All dwelling organisms on this planet are composed of cells, tissues, organs and organ techniques.

Cells, for example, Use a mobile membrane (also often called the plasma membrane) that keeps the intracellular environment—the fluids and organelles—separate from the extracellular ecosystem. Blood vessels hold blood inside a shut circulatory method, and nerves and muscles are wrapped in connective tissue sheaths that separate them from encompassing buildings.

acrosomal reaction – launch of digestive enzymes by sperm that enables them to burrow in the corona radiata and penetrate the zona pellucida of an oocyte ahead of fertilisation.

amniotic cavity – cavity that opens concerning the internal mobile mass as well as trophoblast; develops into amnion.

arachnoid trabeculae – filaments amongst the arachnoid and pia mater in the check here subarachnoid House.

Betz cells – output cells of the primary motor cortex that bring about musculature to move by synapses on cranial and spinal motor neurons.

basal cell – kind of stem mobile present in the stratum basale and while in the hair matrix that continuously undergoes mobile division, making the keratinocytes with the epidermis.

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