Basic Anatomy and Physiology Flashcards

Which of the following is the best definition of physiology?

Answer: The study of how the body works.

Physiology is the scientific study of how living organisms and their parts function. It investigates the mechanical, physical, and biochemical processes that occur within the body to maintain life. This definition encompasses the dynamic workings of organs, systems, and cells, distinguishing it from anatomy (the study of structure) or specific chemical reactions.

Which of the stated relationships is correct?

Answer: The heart is inferior to the clavicle

Anatomical terms describe relative positions in the body. The heart is located in the thoracic cavity, which is below the clavicle (collarbone), making it inferior to the clavicle. Other options are incorrect: the shoulder is proximal to the carpals, phalanges are distal to metacarpals, and the eye is lateral to the bridge of the nose, not medial to the eyebrows.

Complete the sentence correctly: “Cervical vertebrae are……

Answer: superior to the rib cage.

Cervical vertebrae are the seven vertebrae that form the neck region of the spine. This anatomical position places them above the thoracic vertebrae, which are connected to the rib cage. Therefore, cervical vertebrae are superior to the rib cage, not inferior or located between thoracic and sacral vertebrae.

What does the process known as anabolism refer to?

Answer: The use of energy for producing chemical substances

Anabolism is a metabolic process that involves the synthesis of complex molecules from simpler ones. This 'building up' phase of metabolism requires energy input to create new cells, maintain tissues, and store energy. It is distinct from catabolism, which is the breaking down phase that releases energy.

To what does the term “hypochondriac” refer?

Answer: The region of abdomen inferior to the ribs.

In anatomical terminology, the term 'hypochondriac' refers to one of the nine regions used to divide the abdomen. Specifically, the left and right hypochondriac regions are located on either side of the epigastric region, situated inferior to the ribs and costal cartilages. This term literally means 'under the cartilage,' accurately describing its position beneath the lower ribs.