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Human Anatomy and Physiology 2 Midterm Exam Questions and Answers, Exams of Anatomy

Ivy Tech Community College - South CentralAnatomy

Human Anatomy and Physiology 2 Midterm Exam Questions and Answers What gives the myocardium its high resistance to fatigue? - Answer>>The very large number of mitochondria within the cardiocytes When the bicuspid (left atrioventricular) valve closes, it prevents the back flow of the blood from the: - Answer>>Left ventricle into the left atrium Neural controls of peripheral resistance operate via reflex arcs which involve: - Answer>>Baroreceptors Chemoreceptors Vasomotor centre in medulla Vasomotor fibres Vascular smooth muslce

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Human Anatomy and Physiology 2
Midterm Exam Questions and Answers
What gives the myocardium its high resistance to fatigue? - Answer>>The very large number of
mitochondria within the cardiocytes
When the bicuspid (left atrioventricular) valve closes, it prevents the back flow of the blood
from the: - Answer>>Left ventricle into the left atrium
Neural controls of peripheral resistance operate via reflex arcs which involve: -
Answer>>Baroreceptors
Chemoreceptors
Vasomotor centre in medulla
Vasomotor fibres
Vascular smooth muslce
The _____ layers of arteries and veins is innervated by the _____ nervous system -
Answer>>Tunica media
Sympathetic
In the cardiovascular system, what is the definition of hydrostatic pressure? - Answer>>The
force exerted by a fluid pressing against a capillary wall
Where are the largest group of baroreceptors located in the body and what do they detect? -
Answer>>Aortic arch
Changes in arterial pressure and stretch
What region filters, moistens and warms the air in the lungs? - Answer>>Pharynx
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Human Anatomy and Physiology 2

Midterm Exam Questions and Answers

What gives the myocardium its high resistance to fatigue? - Answer>>The very large number of mitochondria within the cardiocytes When the bicuspid (left atrioventricular) valve closes, it prevents the back flow of the blood from the: - Answer>>Left ventricle into the left atrium Neural controls of peripheral resistance operate via reflex arcs which involve: - Answer>>Baroreceptors Chemoreceptors Vasomotor centre in medulla Vasomotor fibres Vascular smooth muslce The _____ layers of arteries and veins is innervated by the _____ nervous system - Answer>>Tunica media Sympathetic In the cardiovascular system, what is the definition of hydrostatic pressure? - Answer>>The force exerted by a fluid pressing against a capillary wall Where are the largest group of baroreceptors located in the body and what do they detect? - Answer>>Aortic arch Changes in arterial pressure and stretch What region filters, moistens and warms the air in the lungs? - Answer>>Pharynx

Where is the main site of gas exchange? - Answer>>In the alveoli Which layers make up the respiratory membrane? - Answer>>Alveloar epithelial cells Alveolar basement membrane Capillary basement membrane Capillary endothelial cells What even is characteristic if the inspiratory phase during normal quiet respiration? - Answer>>Diaphragm flattens Airway resistance is insignificant in relationship to gas flow because - Answer>>The airways branch more as they get smaller, resulting in a huge total cross-sectional area Which respiratory measurement is normally the greatest? - Answer>>Vital capacity Alveolar ventilation rate is - Answer>>The movement of air into and out of the alveoli over a period of time Haemoglobin has a tendency to release oxygen where - Answer>>pH is more acidic Describe the arrangement of lymphatic vessels? - Answer>>A one-way system of vessels beginning with blind-ended lymphatic capillaries What lymphatic structure absorbs lipids in the intestine? - Answer>>Lacteal Correctly order the four steps involved in phagocyte mobilisation - Answer>>1. Leukocytosis

  1. Margination
  2. Diapedesis

Fenestrated endothelium Visceral layer The most important factor affecting the glomerular filtration rate is - Answer>>Net filtration pressure The basic difference between spermatogenesis and oogenesis is that - Answer>>One mature ovum is produced in oogenesis, and four mature sperm are produced in spermatogenesis Which cell type is actually ovulated from the ovary? - Answer>>Secondary oocyte When the concentration of Na+ in the ECF decreases - Answer>>There is an increase in the level of aldosterone A major stimulus for the realease of antidiuretic hormone (ADH) is - Answer>>A rise in plasma osmolality The largest percentage of body water is located in which compartment? - Answer>>Intracellular fluid Chemical buffers can eliminate acids and bases from the body - Answer>>False Renal acid-base control mechanisms are coupled to? - Answer>>Na+ transport The partial pressure of carbon dioxide in a healthy individual is between 35mm Hg anbd 45mm Hg. When the partial pressure is abouce 45 mm Hg, the condition is termed: - Answer>>Respiratory acidosis Plasma contains mostly water and varied levels of: - Answer>>Dissolved proteins

Glucose Clotting factors Electrolytes Hormones Carbon dioxide Oxygen An individual with Type-O blood has which type of antibodies in their blood? - Answer>>Anti- A and Anti-N Antibodies In an ECG trace, the QRS complex is associated with: - Answer>>Ventricular contraction Diastoke occurs when: - Answer>>The ventricles relax In capillary exchange, reabsorption is driven most by this pressure: - Answer>>Osmotic colloid pressure of the capillary Which layer of the arteries and veins is innervated by the sympathetic nervous system? And what does and increase in sympathetic stimulation lead to in a vessel? - Answer>>Tunica media Vasoconstriction The parietal pleura is directly attached to the - Answer>>Thoracic cage The nasopharynx is lined with pseudostratified columnar epithelium, contains pharyngeal tonsils and the opening of the pharyngotympanic tube - Answer>>True Which structures pass through the hilum of the lungs? - Answer>>Bronchial arteries Pulmonary veins

Lymphatic fluid from the body drains into the systemic circulation at the junction of the jugular veins and - Answer>>Subclavian veins The process by which leukocytes pass through the capillary cell wall in response to tissue injury is termed - Answer>>Diapedesis What is the major lymphoid organ that trains T lymphocytes to become immumocompetent? - Answer>>Thymus Any arterial pH between ______ is considered physiological alkalosis - Answer>>7.45 and 7. This ion is chiefly responsible for maintaining osmotic balance and body fluid volume - Answer>>Sodium