Every Living Cell in the Body Requires Oxygen,various Ions,and Nutrients

question 104

Multiple Choice

Every living cell in the body requires oxygen,various ions,and nutrients.However,the solid nature of bone prevents these materials from reaching bone cells by diffusion alone.Which statement best describes how bone cells receive these necessary items?

• A)Blood capillaries penetrate into the calcified matrix of bone.
• B)Bone cells are only found on the periphery of bone and thus are in direct contact with blood vessels.
• C)Bone cells are only found lining the central canal where they are in direct contact with blood vessels.
• D)Bone cells connect to each other and ultimately with blood vessels (in the central canal)through passageways called canaliculi.
• E)Bone cells receive materials through lymph vessels that penetrate bone matrix.

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Definitions:

Obsessive-Compulsive Disorder

A mental disorder characterized by persistent, unwanted thoughts (obsessions) and repetitive behaviors (compulsions) that the person feels driven to perform.

Fear Hierarchy

A list of fears, arranged from least to most intense, used in therapies such as systematic desensitization to help individuals overcome phobias and anxiety disorders.

Therapy Session

A structured period of time in which a patient works with a therapist to address psychological issues and work towards mental health goals.

Fearful Stimulus

Any object, event, or situation that elicits a fear response in an individual.