Neuron Cell Membrane, Reflexes, and Nervous System Anatomy: Final Exam Q&A, Exams of Biology

Download Neuron Cell Membrane, Reflexes, and Nervous System Anatomy: Final Exam Q&A and more Exams Biology in PDF only on Docsity! Question 2 10 / 10 pts BIOD: FINAL EXAM Q and A . Download to score Name and describe what is occurring in the neuron cell membrane in section 4 of the diagram. Include the charge of the membrane during this phase. Your Answer: Question 3 4 / 4 pts Question 4 4 / 4 pts BIOD: FINAL EXAM Q and A . Download to score  Afterpolarization (Hyperpolarization) Potassium gates are slow to close and there is an undershoot of the potential.  The charge drops below -70mV and then returns to -70mV once at resting state again. Where is the integration center of a reflex located? CNS (central nervous system) What is true about the flexor withdrawal reflex? A. It does not involve interneurons. B. It involves excitatory interneurons. C. It involves inhibitory interneurons. D. The effect of the reflex is to create a co-contraction of two muscles E. A&D BIOD: FINAL EXAM Q and A . Download to score A- Lateral femoral cutaneous Question 6 2 / 2 pts Question 7 4 / 4 pts BIOD: FINAL EXAM Q and A . Download to score B- Femoral nerve C- Saphenous Which of the following is most likely a symptom of ALS? Impaired ability to swallow Decreased sensation in the hands Shrinkage of cerebral cortex Increased size of brain ventricles All the above What is the purpose of the blood-brain barrier? Describe its maintenance from a cellular level. The blood-brain barrier is a diffusion barrier which prevents most particles from entering the central nervous system tissue, keeping the brain and spinal cord Question 8 2 / 2 pts BIOD: FINAL EXAM Q and A . Download to score separate from general blood circulation. The blood-brain barrier is formed by the relatively impermeable brain capillaries, due to the glial cells astrocytes. Maintenance of the blood-brain-barrier is important to provide a stable chemical environment for the nervous system. A patient damaged the radial nerve. What action is most likely limited? Elbow flexion BIOD: FINAL EXAM Q and A . Download to score Match the numbers (1-5) in the figure below with the correct terms (A-H). Note: not all terms will be used. BIOD: FINAL EXAM Q and A . Download to score 1- A: Cochlear Nerve 2- B: Facial Nerve 3- C: Tympanic Membrane 4- D: Cochlea 5- E: Malleus F: Vestibule G: Semicircular canal H: Incus BIOD: FINAL EXAM Q and A . Download to score 1 Question 14 4 / 4 pts Question 15 4 / 4 pts BIOD: FINAL EXAM Q and A . Download to score True False What is the purpose of the fossa ovalis in a fetus? The fossa ovalis marks the place of an opening between the atria which is present in all developing fetuses. It allows fetal blood to move directly from right to left atrium, bypassing he undeveloped lungs. The fossa ovalis closes during birth so that the lungs can receive oxygen once the baby is born. Name the vessel in the figure below: (highlighted in blue, also indicated by the arrow) Question 16 2 / 2 pts BIOD: FINAL EXAM Q and A . Download to score Posterior Intraventricular artery Use the figure below to answer the following question. Portion A is filled with air. Which part of the medical equipment shown below (B-F) releases the air from A? Question 17 3 / 3 pts Question 18 0 / 3 pts BIOD: FINAL EXAM Q and A . Download to score E. The valve The sends deoxygenated blood to the lungs to be oxygenated. Left, systemic circuit Right, pulmonary circuit Left, pulmonary circuit Right, systemic circuit Question 21 3 / 3 pts Question 22 5 / 5 pts BIOD: FINAL EXAM Q and A . Download to score Thoracic Duct/Left Lymphatic Duct Blood enters the spleen via the . Your Answer: splenic artery Splenic artery Interferons inhibits what type of infection BIOD: FINAL EXAM Q and A . Download to score agent: Your Answer: virus Virus Question 24 3.2 / 4 pts Question 25 6 / 6 pts BIOD: FINAL EXAM Q and A . Download to score Question 23 3 / 3 pts A patient is admitted to the ER with hives and difficulty breathing. What is most likely happening? Your Answer: the patient is likely experiencing anaphylaxis because of an allergic reaction Anaphylaxis Match the cell with its best description. Select all that apply. Performs phagocytosis Neutrophil Correct! Eosinophil Correct Answer Basophil Correct! Macrophage Correct! Monocyte BIOD: FINAL EXAM Q and A . Download to score orifice C: Vestibule Question 27 4 / 4 pts Question 28 6 / 6 pts BIOD: FINAL EXAM Q and A . Download to score The connects the seminal vesicle with the urethra to allow sperm to exit the body. Your Answer: EJACULATORY DUCT Correct Answer Correct Answer Ejaculatory duct Which of the following is true concerning human cells? A. Haploid cells contain the full number of chromosomes (46). B. Diploid cells contain half the number of chromosomes (23). C. Gamete cells are haploid cells. D. A zygote has 23 chromosomes. E. A&B are true Name and discuss the stage of labor that best describes the figure below: Question 29 4 / 4 pts Question 30 4 / 4 pts BIOD: FINAL EXAM Q and A . Download to score The second stage, delivery of the baby, is the time it takes for the baby to be pushed out of the birth canal after full dilation has been accomplished. During this stage a woman uses her abdominal muscles to push the baby, with the help of the uterus contracting, through the cervix and out the vagina. This stage is much shorter, lasting, on average, 50 minutes in a first delivery and 20 minutes in later ones. After the child is born the umbilical cord is tied and cut. Based strictly on anatomical structural differences, are males or females more likely to get a UTI? Explain your answer. Female; The female urethra is shorter and only carries urine while the male urethra is about 5 times longer. Since the female urethra is short and the external opening is close to the anus, improper wiping or poor hygiene after defecation can easily carry fecal bacteria into the urethra. Bacteria enter the urethra and travel up to the bladder, causing a urinary tract infection (UTI). Describe the difference between the two types of nephrons.