... organic molecules that are consumed must be degraded first into simpler compounds through hydrolysis reactions; this process of degradation is called digestion. The digestive system in humans and other vertebrates consists of a tubular gastrointestinal tract and accessory digestive organs. The initial components of the gastrointestinal tract are the mouth and the pharynx, which is the common passage of the oral ... layer, the serosa, covers the external surface of the tract. Nerve plexuses in the submucosa and muscularis help to regulate the activities of the gastrointestinal tract. Spe...

• Word Count: 9019
• Approx Pages: 36
• Has Bibliography
• Grade Level: Undergraduate

... muscles 2. The area of the body known as the lumbar region would be found at the: upper arm neck foot lower back 3. Which body system is responsible for senses and response to stimuli? integument digestive nervous endocrine 4. Which letter represents the thoracic cavity? Letter A Letter B Letter C Letter D 5. A cut that only goes through a layer ... the body? pelvic thoracic abdominal peritoneum 12. Your elbow is ____ to your wrist. anterior posterior medial distal 13. Which system is responsible for the secretion of hormones? endocrine integumentary circulatory digestive 14. The inner ...

• Word Count: 2878
• Approx Pages: 12
• Grade Level: High School

... very excited, and walking outside when it is cold or windy. All these things are basically putting stress on the body. Whether it is the increase of demands on the digestive system or the muscles (i.e. exercise, therefore increasing heart rate) they are all categorised as physiological stress. There are many ways in which people can improve their lifestyle in order to prevent ... ...

• Word Count: 2819
• Approx Pages: 11
• Grade Level: High School