Homeostasis - Blood Pressure Regulation

What part of the brain is responsible for regulating blood pressure and flow?

• Cerebellum

• Medulla oblongata

• Hypothalamus

• Thalamus

Tags

NGSS.HS-LS1-3

What do baroreceptors detect in the cardiovascular system?

• Temperature changes

• Blood pressure changes

• Blood sugar levels

• Heartbeat rhythm

Tags

NGSS.HS-LS1-3

Which type of muscle fibers are involved in vasodilation?

• Cardiac muscle fibers

• Skeletal muscle fibers

• Smooth muscle fibers

• Striated muscle fibers

What happens to baroreceptors when blood pressure increases?

• They contract

• They stretch more tightly

• They become inactive

• They shrink

Tags

NGSS.HS-LS1-3

What is the primary function of the cardiovascular center in the medulla oblongata?

• To regulate body temperature

• To maintain homeostasis of blood pressure

• To control digestion

• To produce hormones

Tags

NGSS.HS-LS1-3

What happens to heart rate when blood pressure is low?

• It increases

• It decreases

• It remains constant

• It stops

Tags

NGSS.HS-LS1-3

Which of the following is a waste product produced by tissues?

• Oxygen

• Carbon dioxide

• Glucose

• Water

Tags

NGSS.HS-LS1-7

What triggers the reflex that maintains homeostasis in blood pressure?

• Input from baroreceptors

• Input from thermoreceptors

• Input from chemoreceptors

• Input from photoreceptors

Tags

NGSS.HS-LS1-3

What is the effect of vasodilation on blood vessels?

• Constriction

• Relaxation

• Hardening

• Thickening

Tags

NGSS.HS-LS1-3

Which ion concentration is monitored by the cardiovascular center to regulate blood flow?

• Sodium ions

• Hydrogen ions

• Calcium ions

• Potassium ions