After food is partially broken down by enzymes in the mouth, it moves through the throat, past the esophagus, and into the stomach for complete digestion. Learn about the anatomy of the throat and esophagus (pharynx, larynx, epiglottis, nasopharynx, oropharynx, laryngopharynx, and lower esophagea...
There are twelve pairs of cranial nerves that stem from the brain and exit the skull through the cranial foramina. Cranial nerves transmit information about sensation, the control of muscles, equilibrium control, eye movement, hearing, neck and shoulder movement, respiration, and taste....
An upper respiratory infection is a contagious infection of the structures of the upper respiratory tract, which includes the sinuses, nasal passages, pharynx, and larynx. Common causes of an upper respiratory infection include bacteria and viruses such as rhinoviruses, group A streptococci, influenza...
Describe the difference between the functions of the cerebrum and cerebellum. What are the functions of the four main types of cells in the brain? What are the parts of the human brain and their functions? List and explain two functions of the hypothalamus and identify the part of t...
easily attacked by the enzymes in saliva. Our teethcan perform a cutting as well as grinding function to accomplish this task. The tongue assists in mixing the food with the saliva and then the tongue and roof of the mouth (soft palate) help move the food along to the pharynx and ...
What are the stages of sleep? Sleep stages can be measured by monitoring the electrical impulses within the brain, often termed brain waves. These electrical impulses, or brain waves, can be monitored with anelectroencephalogram(EEG). Sleep can be broken up into three stages and REM (rapid eye...
Describe the three regions of the pharynx and their functions. Explain the five functions of the skeletal system. What are the basic functions of the hypothalamus? (a) Describe the cranial nerves. (b) What is their function? Briefly identify and describe the structure and function of ...
The digestive processThe digestive process is controlled and directed by a number of hormones and neurological signals. For instance, when we begin to feel hungry, this sensation is due to the release of ghrelin, known as the hunger hormone, which is secreted from the stomach wh...
In a vasovagal episode, the vagus nerve (one of the nerves that helps control basic body functions like heart rate, breathing, and blood pressure) is overly stimulated and can cause the heart rate to slow and blood vessels to dilate. This decreases the flow of blood to the brain and can...
Small Intestine | Anatomy, Structure & Functions from Chapter 17 / Lesson 4 141K Small intestine: Learn the anatomy, structure, and functions of the small intestine. Also, see the different parts of the small intestine using a diagram. Related...