Ch.9,10,19,20,21 & 23 Review

• Place the events of a contraction cycle in the order in which they occur:

  1. ATP hydrolysis

  2. Detachment of myosin head from actin

  3. Power stroke

  4. Crossbridge formation

  1, 4, 3, 2
• Myoglobin

  binds oxygen
• The epiphyseal plate is an example of a:

  synchondroses
• Smooth muscle

  has no sarcomeres
• What do predict happens to the shape of RBCs when people have defective or absent spectrin or ankyrin?

  They become spherocytes
• If there is defective hemoglobin and causes the RBC to develop a sickle shape, then the patient may develop:

  Anemia
• Warfarin inhibits

  vitamin K activity
• The valve located between the right atrium and right ventricle is the

  Tricuspid valve
• Which of the following statements describes cardiac muscle tissue?

  Cells are striated, Are connected by gap junctions called intercalated discs, and contains myoglobin
• If the cardiac output increases, then the mean arterial pressure

  Increases
• If the arterioles in the systemic circulation vasodilate, then peripheral resistance_______________________

  Decreases
• Which portion of the vascular system has more smooth muscle in the walls?

  Arteries
• T/F : The Osmostic pressure in the systemic circulation decreases in liver failure due to decreased albumin production

  True
• T/F : Arteries take the blood towards the heart

  False
• Air moves out of the lungs when the pressure inside the lungs is

  Greater than the pressure in the atmosphere
• Movement of CO2 from the blood to alveoli, and O2 from alveoli to the blood is:

  External Respiration
• The nasal sinuses are:

  Ethmoid, Sphenoid, Frontal and Coronary
• The trachea and bronchi are lined by

  ciliated pseudostratified epithelium
• If CO2 is decreased in body fluids, then

  Hydrogen ion is decreased
• What is the most common way that O2 is transported in blood?

  Bound to the heme on hemoglobin
• What happens to the external intercostals and the diaphragm during inspiration?

  Contract
• The peripheral chemoreceptors are located in the walls of the ___________________ and ___________________.

  Aortic arch, Carotid artery
• Antigen presenting cells include


  dendritic cells, macrophages, B cells
• MHC II is on

  Macrophages
• Basophils and Mast cells secrete

  histamine
• When a B cell becomes activated, it becomes a/an


  Plasma cell