The ……………. depolarizes about 60 times per minute and is the normal pacemaker of the heart. Initiates rhythmic contractions of the heart. (Represented with number 1.)    

……………………. is a small, saclike organ on the posterior side of the liver that stores and concentrates bile. (Indicates with number 11)      

  The trachea bifurcates in the mediastinum at its final cartilage ring, called ………………………..  (Labeled with number 5)    

At the center of each lobule is a central vein that will eventually drain into a hepatic vein. At each of the six corners of a liver lobule we find three small vessels collectively called ……………….      

Which lymphatic structure may also be a site of erythrocyte production in the fetus?

What fissure separates the right upper and right middle lobes of the lung?                 

First step in urine formation; involves movement of water and small solutes from the glomerulus into the glomerular capsule. Fenestrae allow small molecules to leave the glomerular capillaries. The rate of filtrate production averages about ……………………….. a value called the glomerular filtration rate (GFR).  

Which of these functions can not be attributed to the mucous membrane that lines the nasal cavity?    

……………………………….. are white blood cells that are also one of the body’s main types of immune cells. They are made in the bone marrow and found in the blood and lymph tissue. (Indicates with D)     

……………………..are small cell fragments in our blood that form clots and stop or prevent bleeding. (Indicates with C)