Week 1 Quiz

Anatomy and physiology are two views of one body. Which statement describes physiology rather than anatomy?

Select one.

• A red blood cell is a flat, flexible disc.
• A red blood cell carries oxygen to the body's tissues.
• The heart sits in the thoracic cavity.
• The thumb lies lateral to the index finger.

In a feedback loop that holds body temperature steady, which part compares the reported temperature with the set point?

Select one.

• The receptor
• The effector
• The control center
• The normal range

On the illustrative clinic chart, the set point is 37.0 °C and the model band runs from 36.5 to 37.5 °C. Where does a reading of 36.0 °C sit?

Select one.

• 1.0 °C below the set point, and below the band
• 1.0 °C above the set point, and above the band
• 0.5 °C below the set point, and inside the band
• 1.5 °C below the set point, and below the band

On the same illustrative chart, a reading of 38.5 °C sits 1.5 °C above the set point. Which effectors does the body use to bring it back toward 37.0 °C?

Select one.

• Shivering and goosebumps
• Vasoconstriction and shivering
• None, because the reading is inside the band
• Sweat that evaporates and vasodilation

Which of these is an example of positive feedback?

Select one.

• Shivering that raises a low body temperature
• Blood clotting, in which each activated clotting substance recruits more
• Sweating that lowers a high body temperature
• Blood glucose returning toward normal after a meal

True or false: in the levels of structural organization, an organ is built from tissues, and tissues are built from cells.

True or false.

• True
• False

A person stands in the anatomical position, palms facing forward. Which term describes the thumb's position compared with the index finger?

Select one.

• Medial
• Proximal
• Lateral
• Deep

Which plane divides the body into front and back parts?

Select one.

• The frontal (coronal) plane
• The sagittal plane
• The transverse plane
• The midsagittal plane

Where do the heart and lungs sit?

Select one.

• In the abdominopelvic cavity, inferior to the diaphragm
• In the dorsal cavity, beside the spinal cord
• In the cranial cavity
• In the thoracic cavity, superior to the diaphragm

Select every statement that uses proximal or distal correctly.

Select every option that applies.

• The elbow is proximal to the wrist.
• The knee is distal to the hip.
• The nose is proximal to the chin.
• The chest is distal to the neck.