Answer:
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.
Answer:
A concentric contraction because muscles cause the elbow joint and arm to move is the correct answer.
Explanation:
Your skin has two types of sweat glands: eccrine and apocrine. Eccrine glands occur over most of your body and open directly onto the surface of your skin. ... Apocrine glands develop in areas abundant in hair follicles, such as on your scalp, armpits and groin.
