Name BIOLOGY 406 HUMAN & COMPARATIVE ANATOMY, SPRING 2009 EXAMINATION #2 (PART 1) Date MULTIPLE CHOICE.⎯For the following multiple choice questions circle the letter in front of the response that best answers the question or completes the sentence. (10%, 2% each) For the following write the appropriate word or words in the available space. (6%, 1% each) 1. Which of the following is primarily derived from ectoderm? a. endothelium b. mesothelium c. parotid salivary gland d. submandibular salivary gland e. None of the above. 2. Which of the following is primarily derived from mesoderm? a. brain b. heart c. melanocytes (pigment cells) d. spinal cord e. None of the above 3. Which of the following is primarily derived from endoderm? a. brain b. pancreas c. ventral mesentery d. vertebrae e. None of the above 4. Which of the following embryonic heart chambers is completely LOST in all adult amniotes? a. atrium b. bulbis cordis/bulbus arteriosus c. sinus venosus d. ventricle e. None of the above A B C D E F 2. Provide the common name and classify the organism below providing at least 3 taxonomic names, starting with the most specific (lowest level). (4%) 5. The depicted tissue below is which of the following? a. b. c. d. e. f. areolar connective tissue cardiac muscle dense irregular connective tissue dense regular connective tissue skeletal muscle smooth muscle Common name FILL-IN-THE-BLANK/LABEL II.⎯For the following exercises write the appropriate word or words in the available space. (10%) Use the anterior/ventral view of the human vascular diagram below to fill in the indicated structures to the right. 1. Label the indicated human vessels in the diagram at left. (5%) A B C A D E B 2. Sketch and appropriately label the basic anatomy of a lancelet in the space below. (5%) C D E DEFINITIONS.⎯For the following words or phrases define them as accurately and concisely as possible. (20%, 4% each) 1. Allantois (also include its developmental origin/composition): 2. Epithelium: 3. Primitive Streak: 4. Stomodeum: 5. Transverse Septum: Name BIOLOGY 406 HUMAN AND COMPARATIVE ANATOMY, SPRING 2009 EXAMINATION #2 (PART 2) Date SHORT ANSWER.⎯Address each question in as concise and lucid a manner as possible. Do NOT exceed the space provided. 1. Sketch and label the major arteries of the human arterial system in the form of a diagrammatic set of lines. (18%) (This answer must be in the form of a sketch.) 2. Briefly explain how the human arterial system just superior to the heart develops from the basic amniote pattern. Be certain to identify the major adult vessels and their specific embryologic origins. (Feel free but do not feel obliged to use a table or clearly labeled sketches for your answer.) (10%) 3. Explain the basic layered structure of the human (and other vertebrate) digestive tract. What is each layer called and what is the tissue composition of each? Finally, explain how this structure differs between the stomach and the esophagus. (Feel free but do not feel obliged to use a table or clearly labeled sketches for your answer.) (14%) 4. Briefly explain how the human and bird digestive systems differ. (Feel free but do not feel obliged to use a table or clearly labeled sketches for your answer.) (8%)