Fetal Pig Dissection Structures and Functions€¦ · Fetal Pig Dissection ... Circulatory System...
Transcript of Fetal Pig Dissection Structures and Functions€¦ · Fetal Pig Dissection ... Circulatory System...
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Fetal Pig Dissection –Structures and Functions
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Digestive System Canines • Tear at food Submaxillary Gland• Secretes saliva and mucous to form bolus Pharynx• Opening to esophagusEsophagus• Transfers food from mouth to stomach via
peristalsis
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Digestive System Stomach• Mechanical and chemical digestion Pyloric sphincter• Controls gastric emptyingSmall IntestineDuodenum• Chemical digestion and absorption of
nutrientsIleum• Wraps up aborption
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Digestive System Pancreas• Secretes digestive enzymes to duodenumLiver• Produces bile to emulsify fatsGall Bladder• Storage of bileBile Duct• Transfers bile from gall bladder to
duodenum
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Digestive System
Colon (l. intestine)• Water absorption to produce feces• Bacteria to aid w/undigested food Rectum• Storage of feces prior to eliminationAnus• Allows feces to exit the rectum
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Digestive System Spleen• Destruction of old blood cells• Stores RBC• Manufactures WBCThymus• Produces hormones involved in the processing
and maturation of special lymphocytes called T-cells
• Replaced by connective tissue and fat during puberty
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Respiratory System Epiglottis• Covers trachea during swallowing reflexTrachea• Transfers air from nasal cavity to bronchi Larynx (vocal cords)• Voice resonanceBronchus• Transfer air from trachea to
bronchioles/alveoli
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Respiratory System Lungs• Site of gas exchange b/w air and
capillaries in the alveoliDiaphragm• Contracts to draw air into lungs
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Urinary System Kidney• Filtration, secretion, and reabsorption of
bloodAdrenal gland• Produces hormonesHilus• Entering into kidney for r. arteries, r. veins,
and uretersBladder• Temporary storage of urine
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Urinary System Urethra • Carries urine from the bladder to the
urethral orifice
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Urinary System
RENAL
ARTERY
HILUM
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Circulatory System Heart• Pumps blood to systemic and pulmonary circuits• Right ventricle
– Receives from RA and pumps to pulm. Arteries• Left ventricle
– Receives from LA and pumps to aorta• Right atrium
– Receives blood from vena cava’s and coronary sinus• Left atrim
– Receives bloood from pulm. veinsAuricles• Increase volume of blood in the atriaEpicardium• Protects the heart; outer covering
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Circulatory System External Jugular• Drains blood from the right side of head and
neck region (sends to RA)Internal Jugular• Drains the head and deep regions of face and
neckCommon carotid arteries• Deliver blood to the brain
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Circulatory System Aorta • Receives blood from LV and delivers it to the systemic
circuitAbdominal aorta• Main extension of the aorta that supplies the abdominal
cavity and its many arteriesA. Vena Cava (superior)• Drains blood from head, neck, and ventral portion of
the body and returns blood back to the RAP. Vena Cava (inferior)• Drains blood from the abdomen and dorsal portion of
body and returns it to the heart
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Circulatory System Umbilical artery• Delivers blood from fetus to placenta;
deoxygenatedUmbilical vein• Delivers blood from placenta to fetus;
oxygenatedUmbilical cord• Attaches to placenta; nourishes fetus
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Circulatory System Renal veins• Drains the kidneys; clean blood back to
heartRenal arteries• Delivers blood to the kidneys; supplies
oxygen and is cleaned of cellular wastes
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Circulatory System Pulmonary arteries• RA lungs Pulmonary veins• Lungs LASubclavian artery• Major branch of aorta; supplies vertebral region
and thyrocervical areas with bloodSubclavian vein• Delivers blood to the superior vena cava from
the vertebral and thyrocervical areas
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Circulatory System Femoral vein• Delivers blood from the thigh to the external
iliac that joins the IVC to deliver blood back to heart
Femoral artery• major artery of the leg; supplies many branches
with blood for the thigh• Branches from the common iliacAnterior and posterior tibial arteries• Delivers blood to the lower leg and foot
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Reproductive System Ovary• Produces eggsOviducts• Transfers eggs to uterusUterus• Development of kits; divided to house a litterVagina• Birth canal; receives penis and transfers semen to
cervix/uterus
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Reproductive System Testis• Produce spermScrotum• Surrounds and protects the testesEpididymis • Collect and store maturing sperm cells
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Reproductive System Vas deferens• Transfers sperm from epididymis to urethraSeminal vesicle• Seminal fluid that contains fructose and
prostaglandinsProstate gland• Milky fluid that contains enzymes and adjusts
vaginal pH
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Reproductive System Penis• Transfers semen to vaginal canal