1. Superior -- Toward or at the upper part of the structure 2. Inferior-- Toward or at the lower part of the structure 3. Lateral – Away from the midline of the body / on the outer side 4. Medial – Toward or at the midline of the body / on the inner side 5. Posterior – Toward back of the body 6. Physiology is generally divided into ten physiological organ systems: the cardiovascular system, the digestive system, the endocrine system, the immune system, the muscular system, the nervous system, the renal system, the reproductive system, the respiratory system, and the skeletal system. Let’s look at each system in a bit more detail. Giving the body its shape is the skeleton, which is composed of cartilage and bone. Human body internal parts such as the lungs, heart, and brain, are enclosed within the skeletal system and are housed within the different internal body cavities. The spinal cord connects the brain with the rest of the body.
Also known as the visceral or involuntary nervous system, the ANS functions without conscious, voluntary control. Because it innervates cardiac muscle, smooth muscle, and various endocrine and exocrine glands, this nervous system influences the activity of most tissues and organ systems in the body. the human body, which work together as one unit. Physiology is the study of the physical and biochemical functions of these. This unit will focus on four of the fundamental systems: cardiovascular; respiratory; digestive and lymphatic. An understanding of the functioning of the human body is essential for many careers in health, science, and Both men and women take longer to become sexually aroused, longer to complete intercourse, and longer before sexual arousal can occur again. Generally, the elder man’s libido may decrease, but not disappear. Erection is less firm but can still penetrate. Ejaculation also takes longer. People are aging every single day.
Understanding the basic physiology of endocrinology and metabolism is important for the safe conduct of anesthesia of patients with endocrine disease. Full endocrine assessment and considered interpretation of the results is essential before anesthesia and surgery. In this chapter, we have covered t … The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food. The survival of the organism depends on the integrated
A group of organs that work together to perform one or more functions in the body. Musculoskeletal system. Mechanical support, posture and locomotion. Cardiovascular system. Transportation of oxygen, nutrients and hormones throughout the body and elimination of cellular metabolic waste. Respiratory system. Brought to you by Sciencing. The Circulatory System: Also called the cardiovascular system, the heart and blood vessels have the job of delivering oxygen and nutrients to the rest of the body and collecting waste products for removal from the body by other systems. The Respiratory System: Your lungs allow you to inhale and exhale air to Body systems are groups of organs and tissues that work together to perform important jobs for the body. Some organs may be part of more than one body system if they serve more than one function. Other organs and tissues serve a purpose in only one body system. Examples include the respiratory system, nervous system, and digestive system .
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