Digestive & Urinary System
The components of the digestive system
The functions
urine chemical makeup
Absorption
the small intestines
the large intestines
the rectum
the esophagus
the mouth
Digestion
Mechanical Breakdown
pancreas
kidney
Propulsion
the components of the urinary system
the process of urine release
Ingestion
Defecation
kidneys
bladder
Ureter
Potassium
Sodium
Chloride
Water
Calories/fats/ carbohydrates
fats (lipids): major storage of energy in the body
carbohydrates (sugars): glucose, starch , cellulose
recommended adult calorie intake: 1,500-2,500 per day (depends on height and gender)
The muscles of the urethral sphincters relax, allowing urine to pass through urethra
produces insulin
covers food with saliva, breakdown
filters
moves food to the stomach
stomach
breaks down food more to absorb vitamins, minerals, and proteins
it pushes poop towards the rectum
where poop exits
it's a mixer
has 3 parts
The first part is called the duodenum. The jejunum is in the middle and the ileum is at the end.
includes the appendix, cecum, colon, and rectum. The appendix is a finger-shaped pouch attached to the cecum. The cecum is the first part of the large intestine. The colon is next. The rectum is the end of the large intestine
The small intestine absorbs most of the nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use.
liver
processes, and delivers nutrients to the rest of your body when needed.
purpose
eliminate waste from the body, regulate blood volume and blood pressure, control levels of electrolytes and metabolites, and regulate blood pH
carry urine from each of the kidneys to the bladder.
expands as it fills with urine
filter about 120 to 150 quarts of blood to produce about 1 to 2 quarts of urine.
salivary glands
three pairs of exocrine glands in the mouth that secrete saliva; the parotid, submandibular (submaxillary), and sublingual glands
gallbladder
An organ that stores bile and releases it as needed into the small intestine
The Stomach is mainly composed of the epithelial, muscular and connective tissue
Peristalsis, involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract but occasionally in other hollow tubes of the body, that occur in progressive wavelike contractions. Peristaltic waves occur in the esophagus, stomach, and intestines.