The circulatory system includes the many blood vessels that circulate blood throughout the body. It includes veins, arteries, capillaries, venules, and arterioles. Longissimus cervicis - attaches to the transverse processes of T1-T5 and transverse processes of C2-C6. The trunk (torso) is the central part of the body to which the head and the limbs are attached. Except for the brain, the trunk houses all the vital organs of the human body. The torso muscles attach to the skeletal core of the trunk, and depending on their location are divided into two large groups: As mentioned above, the vagina is the canal that connects the vulva with the uterus. The opening to the vagina is part of the vulva. Filtration of blood and eliminating unnecessary compounds and waste by producing and excreting urine.

Burst fracture: This is a severe type of compression fracture, wherein the bones shatter and can damage the spinal cord. The parietal lobe: Situated in the middle of the brain, the parietal lobe supports the identification of objects and spatial reasoning. It also plays a role in interpreting pain and touch signals.The digestive system is the group of organs that digest food, as well as the various structures within that release substances to aid digestion and absorption. Meanwhile, nerves in the skin relay information about external temperature. This may cause the brain to initiate involuntary responses that control body temperature, such as sweating or shivering.

The fallopian tubes connect the ovaries to the uterus. When the ovaries release an egg, the egg travels down the fallopian tube toward the uterus for potential fertilization. Venous: the major thoracic veins (superior vena cava, azygos venous system, accessory hemiazygos vein, pulmonary veins, esophageal veins, internal thoracic veins, cardiac veins, and superior intercostal veins) drain into the superior vena cava Transportation of oxygen, nutrients and hormones throughout the body and elimination of cellular metabolic waste

Key Points About the Human Body

The alveoli: The alveoli are tiny air sacs at the end of the bronchioles. They work like balloons, expanding when a person inhales and contracting when they exhale.

All fibres extend superiorly into the axilla to insert onto the medial lip of the intertubercular sulcus of the humerus. Latissimus dorsi has a variety of actions on the arm, including internal rotation, adduction and extension. It is also an accessory muscle of inspiration and expiration. Latissimus dorsi is innervated by the thoracodorsal nerve (C6-C8). If a fertilized egg implants in the fallopian tube, doctors call this an ectopic pregnancy. An ectopic pregnancy is a medical emergency because the fallopian tube can rupture. Hymen View this slideshow to learn more about stem cells. How do somatic stem cells differ from embryonic stem cells? Collectively, the intercostal muscles support the intercostal spaces and thoracic cage. However, they also have additional individual functions. The external intercostals elevate the ribs during forced inspiration, expanding the thorax and lungs. In contrast, the internal and innermost intercostals depress the rib cage during forced expiration. This decreases the size of the thorax and lungs. All intercostal muscles are innervated by the intercostal nerves(T1-T11). These nerves run in the intercostal groove between the internal and innermost intercostal muscles.Exchange of oxygen and carbon-dioxide between the body and air, acid-base balance regulation, phonation. The vagina can vary in size, but the average length is about 2.5 to 3 inches. That said, it expands in length during arousal.

As you’ve seen above, the thorax contains more than thoracic arteries, nerves, and lymphatics. It also contains vital organs and structures, such as the heart, lungs, thymus, trachea, and esophagus. Alley, Thomas R. (Feb 1983). "Growth-Produced Changes in Body Shape and Size as Determinants of Perceived Age and Adult Caregiving". Child Development. 54 (1): 241–248. doi: 10.2307/1129882. JSTOR 1129882. The brain is made up of three main subparts: the cerebrum, the cerebellum, and the brainstem. Within these areas, there are several key components of the brain that, together with the spinal cord, comprise the central nervous system. 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.Fairbanks, Eugene F. (2012). Children's Proportions for Artists. Bellingham, WA: Fairbanks Art and Books. ISBN 978-0-9725841-2-8. the ratio of hip circumference to shoulder circumference varies by biological gender: the average ratio for women is 1:1.03, for men it is 1:1.18. [9] Moving forward with the skeletal scaffold of the thorax, we have the thoracic skeleton. It is made up of the sternum, twelve pairs of ribs, twelve thoracic vertebrae, and interconnecting joints. The main thoracic joints include the intervertebral discs, costovertebral, sternocostal, sternoclavicular, costochondral, and interchondral joints. 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.