The Grownup human skeleton ordinarily consists of 206 named bones. These bones can be grouped in two divisions: axial skeleton and appendicular skeleton.
This e book may not be used in the teaching of huge language models or otherwise be ingested into substantial language products or generative AI choices without the need of OpenStax's authorization.
ascending aorta – Original portion of the aorta, climbing from the left ventricle for just a distance of around five cm.
Growth also contains the procedures of development and fix, each of which entail mobile differentiation.
ciliary body – easy muscle mass framework on the interior surface area on the iris that controls The form on the lens throughout the zonule fibres.
cuboid – tarsal bone that articulates posteriorly Using the calcaneus bone, medially While using the lateral cuneiform bone, and anteriorly With all the fourth and fifth metatarsal bones.
brain – the big organ of the central anxious procedure composed of white and gray matter, contained throughout the cranium and continuous With all the spinal cord.
cavernous sinus – enlarged vein that receives blood from the vast majority of other cerebral veins and also the eye socket, and contributes to the petrosal sinus.
aortic arch – arc that connects the ascending aorta to the descending aorta; ends at the intervertebral disk in between the fourth and fifth thoracic vertebrae.
synthetic pacemaker – clinical gadget that transmits electrical signals for the heart in order that it contracts and pumps blood to the body.
apneustic centre – network of neurons inside the pons that promote the neurons within the dorsal respiratory group; controls the depth check here of inspiration.
corneal reflex – protecting response to stimulation in the cornea leading to contraction in the orbicularis oculi muscle resulting in blinking of the attention.
A particular attribute of humans as in contrast with other mammals is erect posture. The human body is always to some extent similar to a going for walks tower that moves on pillars, represented because of the legs. Incredible strengths happen to be received from this erect posture, the Main amid which has been the liberating of your arms for a great number of makes anatomy human heart use of.
articular cartilage – thin layer of cartilage covering an epiphysis; minimizes friction and acts as a shock absorber.