Bio 227 - Lecture Chp. 1

Pubic refers to the ______.

1. anterior region of the pelvis 2. anterior region of the thorax 3. groin 1.

respiratory system

A system of organs, functioning in the process of gas exchange between the body and the environment

Example of Anatomy v Physiology

Anatomy = describes the muscle layers in the wall of the small intestine Physiology = describes the mechanisms by which different nutrients are broken down

urinary system

Choice Filters the blood and removes waste from the blood

Anterior

In front of

cardiovascular system

Moves blood containing hormones, nutrients and gases

lymphatic system

Participates in immune response

endocrine system

Secretes hormones to regulate growth and chemical levels in the blood

Physiology

Study of function Physiology focuses on the molecular or cellular level to gain an understanding of how organ systems work.

Anatomy

The study of structure and form. Anatomists look at the relationships between parts of the body and the structure of individual organs

True or false: Most processes in the body are controlled by negative feedback.

True because neg. feedback returns the body initially to homeostasis, while positive feedback causes activity to increase before returning to homeostasis

Which of the following statements correctly apply to homeostasis as a physiologic process?

When homeostasis fails disease or even death occurs. Negative feedback typically keeps these processes in check. The control center is generally the nervous system or endocrine system. These processes are dynamic.

Which term describes the relationship of the stomach to the spinal cord? anterior posterior proximal medial superior

anterior medial - towards midline x proximal - closer to the point of attachment x posterior - behind/in the back of x superior - closer to the head x

The region of the body that is composed of the upper and lower limbs is the ____ region

appendicular

chemical level of organization

atoms, combine to make -> molecules, molecules combine to make -> macromolecules, combine to make -> organelles the simplest level of organization

The body's ability to maintain an average temperature of about 37°C regardless of the outside temperature is called

homeostasis

Term for lower back

lumbar

The anatomical term for the diamond-shaped region between the thighs that contains the anus and selected external reproductive organs is ______.

perineal

When a stimulus is reinforced to continue in the same direction until a climactic event occurs, it is best as described as ______.

positive feedback

Olecranon refers to the ______.

posterior aspect of the elbow

Popliteal refers to the ______.

posterior aspect of the knee

The component of homeostasis, called the is the sensory nerve body structure that detects changes in a variable, which is either the substance or process that is regulated.

receptor (homeostatic systems)

The anatomical term for the posterior region between the hip bones is ______.

sacral Reason: The lumbar region is superior to the hip bones and not between them. Lumbar inguinal abdominal

The anatomical terms for the calf area of the leg is

sural

The central point that is used when the abdomen is divided into four quadrants is the

umbilical

The central point that is used when the abdomen is divided into four quadrants is the

umbilicus, or naval, navel, or umbilical

What is the body's ability to maintain a consistent internal environment called?

homeostasis

In a negative feedback process, the resulting action will always be in the ______ direction of the stimulus.

opposite