★ The Cardiovascular System OCR A-level Quiz
cardiac muscles are myogenic – what does this mean?
A. muscles contract and relax by receiving signals from the nervous system
B. they have a particular genetic mutation
C. muscles contract and relax without receiving signals from the nervous system
D. the muscle cells wall are made of myelin
Select your answer:
Topics:
DNA & Types of Reproduction Tissues Vet Science Terms Brain/Neuron Anatomy Diversity The Energy Nutrients Integumentary System Medical Terminology Diseases of The Nervous System Medical, Legal, and Ethical Issues The Cardiovascular System: Blood Vessels and Hemodynamics Careers in Health Care Homeostasis, Nutrition, Digestion & Absorption Skeletal System Protozoan Diseases Hygiene and Nutrition Cosmetology AnatomyOther quiz:
Disease › ViewWhich statement describes the U.S. organ donation system?
A. About 30,000 transplants are performed each year.
B. It is mandatory.
C. About 200 lives are saved per year.
D. The waiting lists for organs are very short.
Health › View
sore throat
A. boğaz ağrısı
B. omuz ağrısı