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what are the functions of the digestive system Ingestion Secretion mixing and propulsion Digestion absorption defecation
what is eating ingestion
release of water, enzymes, buffers secretion
movement along GI tract mixing and propulsion
breaking down of foods digestion
moving products of digestion into the body absorption
dumping waste products defecation
A tube through which foods pass and where digestion and absorption occur. GI tract
parts of a GI tract mouth, pharynx, esophagus, stomach, small intestine, large intestine
Organs that help in digestion but through which food never passes. accessory organs
accessory organs teeth, tongue, salivary glands, liver, gallbladder, and pancreas
Layers of the GI wall. Esophagus to anus. 1. Mucosa 2. Submucosa 3. Muscularis 4. Serosa: visceral layer of peritoneum
90% of absorption of products of digestion occurs where? the small intestine
Maneuvers food for chewing and Adjusts shape for speech and swallowing tongue
the three pairs of salivary glands Parotid Submandibular Sublingual
Largest; inferior and anterior to ears (salivary gland) parotid
In floor of mouth; medial and inferior to mandible (salivary gland) submandibular
Inferior to tongue and superior to submandibular Sublingual
Accessory organs in bony sockets of mandible and maxilla teeth
J- shaped enlargement of GI tract, Mixing chamber and holding reservoir, Very elastic/expandable and muscular, Four regions stomach
behind stomach, Produces pancreatic juice in acinar cells pancreas
what are the functions of bile Emulsification and absorbing of fats
the functions of the kidneys Regulation of Plasma ion composition Regulation of Body water Volume (BP) Regulation of blood pH (with lung) Production of Hormones Excretion of waste
inner portion of kidney medulla
outer portion of kidney cortex
urine goes into renal pelvis
urine goes out uretor
what filters plasma Glomerular filtration
urine route Collecting ducts to calyces Calyces to ureter Ureter to bladder Bladder to urethra
release of hormones into interstitial fluid, blood, and general circulation Endocrine system
in endocrine glands.... Pituitary, thyroid, parathyroid, adrenal, pineal
organs that produce hormones but also have other functions.. Hypothalamus, thymus, pancreas, ovaries, testes, kidneys, stomach, liver, small intestine, skin, heart, adipose tissue, and placenta
what are hormones carried in? blood stream
what are hormone secretions regulated by? signals from the nervous system, chemical changes in blood, other hormones.
seven anterior pituitary hormones Human growth hormone (hGH) Thyroid-stimulating hormone (TSH) Follicle-stimulating hormone (FSH) Luteinizing hormone (LH) Prolactin Adrenocorticotropic hormone (ACTH) Melanocyte-stimulating hormone (MSH)
Secreted by liver, muscle, cartilage, bone cells Actions of IGFs much like those of insulin human growth hormones
what does follicle stimulating hormone start in women? egg production and estrogen production
what does Luteinizing hormone stimulate in women completion of egg and it's ovulation, secretion of progesterone and estrogen.
What does follicle stimulating hormone start in men sperm production in testes
what does luteinizing hormone stimulate in men release of testosterone in testes
what initiates and maintains milk production in mammary glands? prolactin
what does ejaculation of milk depend on? oxytocin
what controls production and secretion of glucocorticoids from adrenal cortex Adrenocorticotropic Hormone
what has Small amounts in bloodstream and excess amounts causes skin darkening Melanocyte Stimulating Hormone
what cause kidneys to retain more water Antidiuretic hormone
what is located inferior to the larynx thyroid gland
air moving in and out of lungs pulmonary ventilation
gas exchange between alveoli and lungs External respiration
gas exchange between blood and cells internal respiration
2 lobes and cardiac notch left lung
3 lobes right lung
Created by: katie hartwick