5 Simple Techniques For human anatomy and physiology definition
5 Simple Techniques For human anatomy and physiology definition
Blog Article
blastocyst – term for your conceptus in the developmental phase that is made of about a hundred cells formed into an inner mobile mass that may be fated to be the embryo and an outer trophoblast which is fated to be the linked foetal membranes and placenta.
This guide might not be used in the schooling of large language models or usually be ingested into huge language products or generative AI offerings without having OpenStax's permission.
basilic vein – superficial vein from the arm that occurs with the palmar venous arches, intersects Together with the median cubital vein, parallels the ulnar vein, and carries on to the higher arm; along with the brachial vein, it contributes to the axillary vein.
choroid – highly vascular tissue within the wall of the attention that materials the outer retina with blood/
Protection with the heart, lungs, together with other organs and structures in the chest generates a difficulty to some degree various from that with the central nervous procedure. These organs, the function of which involves movement, enlargement, and contraction, will need to have a versatile and elastic protective masking. This kind of masking is supplied by the bony thoracic basket, or rib cage, which sorts the skeleton of your wall on the upper body, or thorax.
anterior cavity – larger body cavity Positioned anterior towards the posterior (dorsal) body cavity; includes the serous membrane-lined pleural cavities to the lungs, pericardial cavity for the heart, and peritoneal cavity with the abdominal and pelvic organs; also generally known as ventral cavity.
bursa – connective tissue sac that contains lubricating fluid that forestalls friction involving adjacent buildings, which include skin and bone, tendons and bone, or among muscles.
basal nuclei – nuclei in the cerebrum (with a several components within the higher brain stem and diencephalon) which might be liable for assessing cortical motion instructions and comparing them with the overall condition of the individual by broad modulatory activity of dopamine neurons; mostly related to motor functions, as evidenced with the indicators of Parkinson’s and Huntington’s health conditions.
canaliculi – (singular = canaliculus) channels in the bone matrix that household one of an osteocyte’s numerous cytoplasmic extensions that it makes use of to communicate and obtain nutrients.
The relationship of the ribs towards the breastbone—the sternum—is in all circumstances a secondary a single, brought about through click here the fairly pliable rib (costal) cartilages. The small joints between the ribs and the vertebrae allow a gliding movement from the ribs over the vertebrae for the duration of respiration as well as other routines. The motion is limited by the ligamentous attachments among ribs and vertebrae.
course switching – skill of B cells to change the class of antibody they make with out altering the specificity for antigen.
aldosterone – hormone manufactured and secreted because of the adrenal cortex that stimulates sodium and fluid retention and boosts blood quantity and here hypertension.
digital arteries – formed with the superficial and deep palmar arches; offer blood into the digits.
anterior corticospinal tract – division on the corticospinal pathway that travels from the ventral (anterior) column of the spinal twine and controls axial musculature throughout the medial motor neurons in the ventral (anterior) horn.