CFA #6 Redo 24-25

Front

What is the role of the circulatory system in response to injury?

Back

The circulatory system increases blood flow to carry white blood cells to the site of the injury, helping to fight infection.

Front

How do the respiratory and circulatory systems work together during physical exertion?

Back

The respiratory system increases the breathing rate, while the circulatory system increases blood pressure to deliver more oxygen to tissues.

Front

What body systems are involved in the fight-or-flight response?

Back

The nervous and endocrine systems are involved in increasing heart rate and alertness during sudden fright.

Front

What is an internal feedback mechanism in the context of body temperature regulation?

Back

An internal feedback mechanism helps maintain homeostasis by regulating body temperature in response to environmental changes.

Front

Define vasodilation.

Back

Vasodilation is the widening of blood vessels, which increases blood flow and decreases blood pressure.

Front

Define vasoconstriction.

Back

Vasoconstriction is the narrowing of blood vessels, which decreases blood flow and increases blood pressure.

Front

What is the function of white blood cells?

Back

White blood cells are part of the immune system and help the body fight infections.

Front

How does increased blood flow help in healing injuries?

Back

Increased blood flow delivers nutrients and immune cells to the injury site, promoting healing and fighting infection.

Front

What is the significance of calcium in muscle contraction?

Back

Calcium ions are essential for muscle contraction as they trigger the interaction between actin and myosin filaments.

Front

What is the role of hormones in the endocrine system during stress?

Back

Hormones released by the endocrine system prepare the body to respond to stress, affecting heart rate, metabolism, and energy levels.