About 90% of the calcium needed for contraction of heart muscle cells comes from the _________

Fill in the blank(s) with correct word


sarcoplasmic reticulum

Anatomy & Physiology

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Match the term with the appropriate description.A. Lipids that cause smooth muscle relaxation and vasodilationB. Lymph nodules aggregated in the small intestinal wallC. Rounded epithelial structures found in the medulla of thymusD. Areas of a lymph node where lymphocytes divideE. A chemical released from mast cells that causes vasodilationThymic corpuscles

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Establishment of home remedies previously given is irrelevant when diagnosing a disease condition

Indicate whether the statement is true or false

Anatomy & Physiology

The major components of the lymphatic system include the __________.

a. thoracic duct, right lymphatic duct, and lymph nodes b. spleen, thymus, and tonsils c. lymph nodes, lymph, and lymphocytes d. lymphatic vessels, lymph, and lymphatic organs

Anatomy & Physiology

Late in pregnancy, levels of estrogen and oxytocin rise.

Answer the following statement true (T) or false (F)

Anatomy & Physiology