BIOLOGY 2325 HUMAN ANATOMY

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1 Score Please do not write in these spaces BIOLOGY 35 HUMAN ANATOMY 75 points possible SECOND MIDTERM EXAMINATION SPRING SEMESTER 011 Name Last First (Please print clearly) DIRECTIONS: Read each question carefully before answering. Understanding the questions is a part of the examination. Answer all questions in the spaces provided on the examination. Print your name in the space provided on the first page and at the top of each subsequent page. This examination consists of 8 questions and 6 pages. It is your responsibility to see that the examination is complete. DO NOT WRITE IN RED. Please write in a legible fashion. If we cannot read your answer, it will be marked wrong. 1. (7 points) Answer the questions pertaining to the illustration below: What is the name of structure #1? 1 What type of tissue is structure #1 made of? What is the name of structure #? What is the male homologue of structure #? What is the function of structure #? What is the name of structure #3? How does the tissue of structure #3 differ from the tissue of structure #1? 3

2 . (15 points) Draw the following nervous traces on the illustration below. When drawing the neurons, you must clearly draw the location of their cell body and synaptic junctions. The synaptic junctions must be represented like the pictures that you studied in the lecture manual. You must also label the neurons. At Level 1, draw and label a reflex pathway to a skeletal muscle served by the ventral ramus. Color each neuron a different color and clearly show the cell bodies and synapse locations. Level 1 At Level, draw and label a sympathetic neuron reflex from and to a blood vessel in the epaxial body wall. Color each neuron a different color and clearly show the cell bodies and synapse locations. Level At Level 3, draw and label a sympathetic neuron pathway from and to a blood vessel in the descending colon. Color each neuron a different color and clearly show the cell bodies and synapse locations. Level 3 At Level 4, draw and label a parasympathetic neuron pathway from and to the taenia coli muscle of the descending colon. Color each neuron a different color and clearly show the cell bodies and synapse locations. Level 4 In this illustration what spinal levels are represented by: Level 1 Level Level 3 Level 4

3 3. (9 points) One of the major themes of this portion of the course was the pattern of the body wall muscles of the trunk. The table below depicts the pattern of design of the body wall and has an empty box for each muscle in the body wall. Fill in each of the boxes with the correct muscle to complete the table. Pattern Ventral Lateral Outermost Lateral External Lateral Middle Lateral Internal Subvertebral Thorax Abdomen 3

4 4. (14 points) Trace a red blood cell on a continuous route from the heart to the right transversus thoracis muscle then back to the heart then to the greater curvature of the stomach at its pyloric end then back to the heart and then to the right testis then back again to the heart and then to the right subcostal muscle in the uppermost intercostal space and then once more back to the heart. There are no blockages so your trace must traverse normal pathways of flow. Your trace must consist of a columnar list of the vessels through which the red blood cell passes as it moves to and from each of these structures. Use the space in the columns below. You do not need to list the structures of the heart in the trace, nor do you have to write arterioles, capillaries, venules. Right testis Right transversus thoracis muscle Right subcostal muscle in upper intercostal space Greater curvature of pyloric end of stomach 4

5 5. (8 points) In the spaces below, label the numbered structures in the illustration and answer the question below the numbered lines What named tubes run through structure #1? 1 5 What named tube runs through structure #3? (6 points) Answer the questions about the illustration below. A B What type of neuron is depicted above? What is the name of the processes indicated by #1? Where in the peripheral nervous system would you find structure #? If letter A represents the peripheral end of this cell and letter B is the end in the spinal cord, what would the end indicated by the A be associated with? When process B projects into the spinal cord, name two types of neurons it can synapse with. 1 _ and _ 5

6 7. (11 points) Fill in the blanks in the sentences below. The nerve distributes parasympathetic efferent neurons to the thoracic viscera and arises from the. Name one primary retroperitoneal organ. Name four secondary retroperitoneal organs: The is the peritoneal fold that runs between the stomach and the liver. At ovulation the egg breaks the surface of the ovary and enters the. What named cells form the myelin sheaths of the peripheral nervous system? The adoral branch of the splenic artery is the 8. (5 points) In the boxes below pick a color and fill the box and then clearly illustrate each structure on the picture with that color. You must clearly color the entire extent of each of the named structures. Also, with a labeled arrow clearly indicate the location of the pleural cavities and pericardial cavity. In the spaces below list three mediastinal structures that are visible in this illustration other than the heart and its anatomy. visceral pleura parietal pleura visceral pericardium parietal pericardium fibrous pericardium Mediastinal structures: 6