★ The Circulatory System Quiz
A hollow muscular organ about the size heart of a clenched fist.
A. liver
B. heart
C. lungs
D. brain
Select your answer:

Topics:
Body System Hematology / Oncology Composition of Blood and Blood Cells Neuroanatomy Healthcare Systems and Settings Environment Musculoskeletal Fitness Musculoskeletal System Foot Orthosis Vocab Cartilage The Microbial World Heart Infection Psoriasis Food MicrobiologyOther quiz:
Microbiology › ViewWhich gland shrinks in size during adulthood and has hormones that function in maturation of T lymphocytes?
A. Lymph nodes
B. Tonsils
C. GALT
D. Thymus
Eye and Ear › View
Which part of the ear is a stretched membrane at the entrance of the middle ear?
A. cochlea
B. cornea
C. eardrum
D. anvil