Name: ________________ ___________ Sec #: _________ Station #: ________ Rat Lab ± QUIZ (0.4pts)1a. Fill in the blanks for the blood flow through the human body , beginning in the lungs. Include the names of major blood vessels (and, if asked, how many of them) and all 4 heart valves: Lungs ________________ (how many? ____) left atrium ________________ (valve) ________________ ________________ ________________ (valve) rest of body ________________ (name both) right atrium ________________ (valve) right ventricle ________________ (valve) lungs (0.05)1b. Which wal l of the heart is THI CKER and w hy? (0.05)1c. Name the sac in which the heart is in. (0.15)2a. One distinguishing trait of chordates is the possession of the notochord. Name the three other distinguishing traits of chordates. ______________________________ ______________________________ ______________________________ (0.15)3a. Excretory system: Trace the pathway of urine, beginning in the kidney. (0.1)3b. What are the f unctional units of kidneys and one of their major functions? (0.1)3c. Circle ALL that apply: Birds excrete nitrogenous waste that is: a. Urea b. Energetically costly c. 2 nitrogens in it d. 3 nitrogens in it e. Also excreted by land snails (0.5)4a. Dig est ive system: Trace the pathway of a burger yo u just ate, beginning with the mouth. Include specif ic regions in the pharynx, small intestine, and the large intestine. Mouth __________________ (sphincter) __________________ stomach (sphincter)__________________ __________________ (__________________, __________________, __________________) (valve) __________________ large intestine (__________________,__________________) rectum anal canal (anal sphincters) anus (0.2)4b. What organs secrete fluids that aid in digestion? ________________________ List one of these secretions _______________________ and give its function __________________________________________________________________________ (0.05)4c. What structure prevents food from entering your trachea? (0.05)4e. Name one organ that you can find in the peritoneum. (0.2)5. Fill in with the best anatomical term: (ref. = human anatomical position) Where you can see them side by side, the parotid duct is _______________________ to the facial nerve. The tarsals are more ___________________to the tibia and fibula than the metatarsals. The ileum is ________________________to the jejunum. The maxilla is _____________________to the mandible. (0.2)Label : (0.05)3d. Order the forms of nitrogenous waste from MOST toxic to LEAST toxic. (0.1)4d. What are mesentaries (their function) and what major type(s) of primary tissue are they made out of? (0.05)2b. When did chordates first appear? _______________________ mya (0.05)Label: