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Diving deeper underneath all the previous superficial extrinsic muscles, one reaches the intermediate layer. he serratus posterior muscles are two oblique muscles: Pectoralis major is a large, fan-shaped, superficial muscle located on the anterior thoracic wall. It forms the bulk of the chest area and can be easily seen on the surface in some people, for example weightlifters. The muscle has three heads giving it three points of origin: Many organs play a role in the immune system. For example, the skin prevents dangerous pathogens from entering the body, and the salivary glands release saliva that can help break down some dangerous sources of infection in food. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
The male reproductive system consists of testicles, which act as a storehouse for sperms. These oval-shaped organs, are encased in a pouch that is called scrotum. Exchange of oxygen and carbon-dioxide between the body and air, acid-base balance regulation, phonation. The muscles of the stomach help it break down and digest food. Within its lumen lining, certain regions of the stomach also produce enzymes that help digest food. The enzyme pepsin, for example, breaks down proteins so that they can become amino acids. The next set of torso muscles are found in the intercostal spaces between the ribs. The intercostal muscles consist of a group of three layered muscles, from superficial to deep: external, internal and innermost intercostals. Epithelial tissue refers to groups of cells that cover the exterior surfaces of the body, line internal cavities and passageways, and form certain glands. Connective tissue, as its name implies, binds the cells and organs of the body together. Muscle tissue contracts forcefully when excited, providing movement. Nervous tissue is also excitable, allowing for the generation and propagation of electrochemical signals in the form of nerve impulses that communicate between different regions of the body ( Figure 4.1.1).
List of Human Body Parts
Problems with insulin can lead to a dangerously high level of blood glucose and the onset of diabetes. All content published on Kenhub is reviewed by medical and anatomy experts. The information we provide is grounded on academic literature and peer-reviewed research. Kenhub does not provide medical advice. You can learn more about our content creation and review standards by reading our content quality guidelines.
The intertransversarii are similar to the interspinales muscles, but connect adjacent transverse processes rather than spinous processes. There are four groups of these muscles; anterior cervical intertransversarii, posterior cervical intertransversarii, intertransversarii laterales lumborum and intertransversarii mediales lumborum. Filtration of blood and eliminating unnecessary compounds and waste by producing and excreting urine. Joints: intervertebral discs, costovertebral, joint of head of rib, sternocostal, sternoclavicular, costochondral, interchondral joints
Urinary system
Major muscles included are the pelvic floor muscles, transversus abdominis, multifidus, internal and external obliques, rectus abdominis, erector spinae (sacrospinalis) especially the longissimus thoracis, and the diaphragm. The lumbar muscles, quadratus Lumborum (deep portion), deep rotators, as well as cervical muscles, rectus capitus anterior and lateralis, longus coli may also be considered members of the core group. [2] The zygote is described as omnipotent because it ultimately gives rise to all the cells in your body including the highly specialized cells of your nervous system. Describe this transition, discussing the steps and processes that lead to these specialized cells. The pons: Located above the medulla in the brainstem, this area helps control eye and facial movement. Areola. The areola is the pigmented area that surrounds the nipple. It is circular and varies in size from person to person. It contains small glands, called Montgomery glands, that secrete lubrication to keep the nipple from drying out, especially when nursing.
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