Question 1

Digital Subtraction Angiography (DSA) imaging is most useful in discovering obstructed blood supplies in organs and tissues.

Accepted Answer

DSA imaging uses contrast agents to highlight blood vessels and identify areas of blockage or narrowing, making it an effective tool for detecting obstructed blood supplies in organs and tissues.

Question 2

Without some sort of negative feedback mechanism, it would be impossible to keep our body chemistry in balance.

Accepted Answer

Negative feedback mechanisms are necessary to maintain homeostasis in our body, which means keeping our internal environment stable and in balance. Without negative feedback mechanisms, any disruptions to our body chemistry could continue unchecked, leading to imbalances and potential harm to our health.

Question 3

The coxal joint is most likely found in the  ___________ region of the body.

Accepted Answer

The coxal joint is also known as the hip joint, which is located in the hip region of the body. Therefore, the best choice is D, hip.

Question 4

It is important for any organism to maintain its boundaries, so that its internal environment remains distinct from the external environment surrounding it.

Accepted Answer

Maintaining boundaries is crucial for organisms to regulate their internal environment and perform various necessary functions. This is achieved through various mechanisms, such as cell membranes and skin, which help control the exchange of substances between the internal and external environment.

Question 5

The study of large body structures, visible to the naked eye, such as the heart is called __________anatomy.

Accepted Answer

The study of visible, large body structures is called gross anatomy. Choice A, systemic anatomy, is the study of body systems and their interactions. Choice B, microscopic anatomy, is the study of structures that cannot be seen with the naked eye. Choice C, developmental anatomy, is the study of how an organism develops and changes throughout its life cycle.

Question 6

Embryology concerns the structural changes that occur in an individual from conception through old age.

Accepted Answer

Embryology specifically studies the formation and development of an embryo and fetus, from fertilization until birth, not through old age.

Question 7

Generally, what is the result of the negative feedback process?

Accepted Answer

The negative feedback process is a regulatory mechanism that functions to maintain homeostasis in the body. This means that it aims to keep the body's internal environment stable and within a certain range of conditions, such as temperature, pH, and hormone levels. Negative feedback helps to counteract any changes that may occur in these conditions, ensuring that the body can function properly.

Question 8

Positive feedback mechanisms tend to enhance the original stimulus so that the response is accelerated.

Accepted Answer

Positive feedback mechanisms amplify the initial stimulus, leading to a more vigorous response.

Question 9

The epigastric region is superior to the umbilical region.

Accepted Answer

The epigastric region is located above (or superior to) the umbilical region.

Question 10

Responsiveness or irritability is the ability to sense changes in the environment and then respond to them.

Accepted Answer

Responsiveness or irritability is defined as the ability to sense changes in the environment and respond to them. It is a characteristic of living organisms. Therefore, the statement is true.

Question 11

The right hypochondriac region contains the majority of the stomach.

Accepted Answer

The right hypochondriac region contains the liver, gallbladder, and a portion of the small intestine. The majority of the stomach is located in the left upper quadrant (LUQ) or the epigastric region.

Question 12

The part of the serous membrane that lines the peritoneal cavity wall is called visceral peritoneum.

Accepted Answer

The part of the serous membrane that lines the peritoneal cavity wall is called parietal peritoneum, while the part that covers organs within the cavity is called visceral peritoneum.

Question 13

A major function of serous membranes is to decrease friction.

Accepted Answer

Serous membranes are thin layers of tissues that line the internal cavities of the body such as the pleural and peritoneal cavities. One of their main functions is to secrete a lubricating fluid that decreases friction between organs and body walls as they move against each other, thus reducing wear and tear on these tissues.

Question 14

Expiration (breathing out) is how the body removes excessive carbon dioxide from the blood. This is an example of __________ .

Accepted Answer

Expiration, or breathing out, allows the body to remove excessive carbon dioxide from the blood. Carbon dioxide is a waste product of metabolism, and removing it through the lungs is an example of the excretion of metabolic waste.

Question 15

The anatomical position is characterized by all of the following EXCEPT  ___________ .

Accepted Answer

The anatomical position is characterized by the arms at sides, thumbs pointed laterally, body erect, and palms turned anteriorly (toward the front). Therefore, the statement "palms turned posteriorly" is incorrect for the anatomical position.

Question 16

Histology would be best defined as a study of __________.

Accepted Answer

Histology is the study of tissues, which are groups of specialized cells that work together to perform a specific function.

Question 17

The elbow is proximal to the shoulder.

Accepted Answer

The elbow is distal to the shoulder.

Question 18

A structure that is composed of two or more tissue types that work together to perform specific functions for the body is a(n)  __________.

Accepted Answer

An organ is defined as a structure that is composed of two or more tissue types that work together to perform specific functions for the body. Complex cells and complex tissues do not fit the definition, and organ systems are composed of multiple organs working together, not just one organ.

Question 19

A tissue consists of groups of similar cells that have a common function.

Accepted Answer

This statement is true. Tissues are made up of groups of cells that work together to perform a specific function. Examples of tissues include muscle tissue, epithelial tissue, and nervous tissue.

Question 20

Lungs carry out an excretory function.

Accepted Answer

Lungs help in the excretion of carbon dioxide, which is a waste product of cellular respiration, thus performing an excretory function.

Quiz 1: The Human Body: an Orientation