Lab Practical #4 TURTLE ANATOMY AMPHIOXUS ANATOMY Use the dissected turtle to find these structures Mouth Buccal cavity Oral hood with cirri/tentacles Rostrum Pharynx with gill slits Intestine (Caecum is the start of the intestine) Atrium surrounding the intestine Anus Notocord Nerve cord Post-anal tail with caudal fin your lab practical exam will include pictures of these dissections taken from the web In cross-section: Pharynx with gill slits Dorsal fin Nerve cord Notocord Muscles or myomeres Gill bars Gill slits Pharynx FROG ANATOMY Use your dissected frogs to find these structures your lab practical exam will include pictures of these dissections taken from the web Heart – atrium and ventricle Lungs Stomach Liver Gallbladder Small intestine (find where the duodenum connects to the stomach) Large intestine Fat bodies Urinary bladder External nares Tongue Glottis Teeth – vomerine and maxillary Eustacian tube Heart – atria and ventricle Lungs Stomach Liver Gallbladder Small intestine (find where the duodenum connects to the stomach) Large intestine Urinary bladder Gonads CAT & PIG ANATOMY use your dissected cats and fetal pigs to find these structures. your lab practical exam will include pictures of these dissections taken from the web Heart & Circulation Ascending aorta Aortic arch Descending aorta – thoracic and abdominal portions Brachiocephalic trunk Common carotid arteries Subclavians – arteries and veins Celiac trunk Superior Mesenteric artery Inferior Mesenteric artery Common Iliac arteries and veins Superior vena cava & inferior vena cava Jugular veins Heart Atria (atrium) & Auricles &Ventricles Interventricular septum Superior vena cava & inferior vena cava Pulmonary trunk & pulmonary arteries & pulmonary veins Aortic arch and the two pig divisions (brachiocephalic & left subclavian) Pig heart: AV valves (tricuspid & bicuspid) Cordae tendinae Respiratory system Pharynx External nares Trachea & “C” cartilage Diaphragm Lungs Primary bronchus Larynx HUMAN ANATOMY use the human models provided in the lab to find these structures. Excretory system Adipose capsule around the kidney Renal cortex, renal medulla Renal column, renal pyramid Renal artery, renal vein Ureter Urinary bladder Heart & Circulation Ascending aorta Aortic arch Descending aorta – thoracic and abdominal portions Brachiocephalic trunk Common carotids Subclavians – arteries and veins Brachials – arteries and veins Celiac trunk Superior Mesenteric artery Inferior Mesenteric artery Gonadal arteries – ovarian or testicular Common Iliacs – arteries and veins External and internal iliacs– arteries and veins Superior vena cava & inferior vena cava Jugular veins Digestive System Oral cavity & Tongue Esophagus Stomach Small intestine Large intestine Liver Gallbladder Pancreas Spleen Reproductive System (cat only) Male Scrotal sac with testis Spermatic cord containing the vas deferens Penis External urethral orifice Female Ovary Oviduct with fimbrae Uterine horns Nervous system (sheep brain) Cerebrum Sulcus Gyrus Longitudinal fissure Midbrain Pons Medulla Oblongata Cerebellum your lab practical exam will include pictures of these models or models very similar or pictures from you lectures Heart Atria (atrium) & Auricles &Ventricles Interventricular septum Superior vena cava & inferior vena cava Pulmonary trunk & pulmonary arteries & pulmonary veins Aorta and the 3 divisions (brachiocephalic trunk, left common carotid & left subclavian) Pulmonary and aortic semilunar valves Cordae tendinae Papillary Muscles Tricuspid & bicuspid valves Respiratory system Pharynx External nares Soft and hard palate Epiglottis Trachea & “C” cartilage Diaphragm Lungs Primary bronchus, secondary bronchus, tertiary bronchus Larynx – thyroid and cricoid cartilages Excretory system Renal cortex, renal medulla Renal column, renal pyramid Renal artery, renal vein Renal papilla, major calyx, minor calyx, renal pelvis Ureter Urinary bladder Digestive System Oral cavity & Tongue Esophagus Stomach Mesentery of small intestine Mesocolon Liver Gallbladder Pancreas Stomach – body, fundus, pyloric region, lesser curvature, greater curvature, rugae Small intestine – duodenum, jejunum, ileum Large intestine – caecum, ascending, transverse, descending and sigmoid colons, rectum Reproductive System Male Scrotal sac with testis Spermatic cord containing the vas deferens Penis & Glans penis Corpus spongiosum and cavernosum External urethral orifice Epididymus & vas deferens Female Ovary Oviduct Infundibulum with fimbrae Vaginal canal and orifice Uterus –fundus, body, cervix Nervous system Cerebrum Sulcus Gyrus Lobes of the cerebrum Longitudinal fissure Diencephalon – thalamus, hypothalamus Midbrain Pons Medulla Oblongata Cerebellum Meninges and spaces surround the brain and spinal cord Spinal cord regions – cervical, thoracic, lumbar, sacral, cauda equinae, filium terminale, cervical and lumbar enlargements 3 Gray horns of spinal cord 3 White columns of spinal cord Gray commissure Central canal