45 Questions
Which level of organization in the body consists of groups of cells with a similar structure and specialization?
Tissue level
Which type of tissue initiates and transmits electrical impulses?
Nervous tissue
Which body system is responsible for structural support and movement?
Skeletal system
Which body system is responsible for defending against foreign invaders such as bacteria and viruses?
Immune system
Which body system regulates activities that require duration rather than speed, such as growth?
Endocrine system
Which body system provides support and protection for soft tissues and organs, serves as a storage reservoir for calcium, and enables movement?
Skeletal system
Physiology is the study of the functions of living things. It is closely related to which of the following?
Anatomy
Which level of organization in the body includes layers of tissue in the stomach wall?
Tissue level
Which of the following atoms are most commonly found in the human body?
Oxygen, carbon, hydrogen, and nitrogen
Which type of feedback is less common but important in some instances, such as childbirth?
Positive Feedback
What type of mechanism initiates responses in anticipation of a change, but is infrequently used?
Feedforward Mechanisms
What can disruptions in homeostasis lead to, and what is pathophysiology?
Illness and death; abnormal functioning of the body associated with disease
What is the function of the integumentary system?
To serve as a protective barrier between the external environment and the body
What is the main function of the endocrine system?
To regulate metabolic activities
What is the purpose of negative feedback in homeostatic control systems?
To shut off the system responsible for the response
Which level of organization in the body consists of groups of cells with a similar structure and specialization?
Tissue level
What is the main function of the integumentary system?
Regulating body temperature
Which body system is responsible for structural support and movement?
Skeletal system
Which type of tissue initiates and transmits electrical impulses?
Nervous tissue
What is the main function of the endocrine system?
Secreting hormones
Which body system is responsible for defending against foreign invaders such as bacteria and viruses?
Immune system
Which of the following is NOT a basic cell function?
Synthesizing proteins and cell components
Which tissue type is responsible for exchanging materials between the cell and environment?
Epithelial tissue
Which level of organization in the body consists of two or more types of primary tissue organized to perform particular functions?
The Organ Level
Which body system is responsible for carrying oxygen, nutrients, hormones, and other substances throughout the body?
Circulatory system
Which body system is responsible for protecting the body from foreign invaders such as bacteria and viruses?
Immune system
Which level of organization in the body includes the interplay among multiple systems?
The Organism Level
Which body system is responsible for obtaining nutrients, water, and electrolytes from the external environment and transferring them into the plasma?
Digestive system
Which body system is important in regulating the volume, electrolyte composition, and pH of the internal environment, and removes wastes and excess water, salt, acid, and other electrolytes from the plasma?
Urinary system
Which body system obtains O2 from and eliminates CO2 to the external environment, and helps regulate pH by adjusting the rate of removal of acid-forming CO2?
Respiratory system
Which body system provides support and protection for soft tissues and organs, serves as a storage reservoir for calcium, and enables movement?
Skeletal system
Which body system defends against foreign invaders such as bacteria and viruses, and helps in replacing injured or worn-out cells?
Immune system
Which body system controls and coordinates body activities that require swift responses, and regulates activities that require duration rather than speed, such as growth?
Nervous system
Which body system is responsible for transporting nutrients, oxygen, carbon dioxide, wastes, electrolytes, and hormones throughout the body?
Circulatory system
What is the main function of the muscular and skeletal systems?
Supporting and protecting body parts
Which type of feedback opposes an initial change and is widely used to maintain homeostasis?
Negative feedback
What is the purpose of the integumentary system?
Serving as a protective barrier
Which body system defends against foreign invaders and paves the way for tissue repair?
Immune system
What is the purpose of homeostatic control systems in the body?
To maintain a constant internal fluid environment
Which type of feedback is less common but important in some instances, such as childbirth?
Positive feedback
What is pathophysiology?
The abnormal functioning of the body associated with disease
Which body system contributes to maintaining homeostasis by defending against foreign invaders such as bacteria and viruses?
Immune system
What factors must be homeostatically maintained, and which body system contributes to maintaining each of these factors?
Structural support and movement - Skeletal system
Why is negative feedback important physiologically?
It helps maintain homeostasis
What type of mechanism initiates responses in anticipation of a change, but is infrequently used?
Feedforward mechanism
Test your knowledge on the components of extracellular fluid (ECF) and its role in maintaining homeostasis. This quiz will cover topics such as interstitial fluid, plasma, and the importance of a stable internal environment for cell survival.
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