Organ Systems
Structural Organization
Directional Terms
Homeostasis
Functions of Life
100

This system helps to protect the body by producing immune cells.

What is the lymphatic (immune) system?

100

Of the five levels of organization in the human body, this one is the most complex.

What is organism?

100

The hip bone's _______________ to the thigh bone.

What is superior?

100

Homeostasis is _______________.

What is regulation of internal systems?

100

A loud noise causes you to jump in surprise. This is an example of this function of life.

What is responding to stimuli?
200

This system supports and protects the body while giving it shape and form.

What is the skeletal system?

200

Organs are made up of ________.

What are different tissues?

200

The navel can be found on the __________ side of the body.

What is anterior / ventral?

200

Most homeostatic regulation is performed by this type of feedback mechanism.

What is a negative feedback loop?

200
Unspecialized stem cells grow and develop into specialized nephrons, osteocytes, simple squamous cells, etc. This process is known as ____________.

What is differentiation?

300

This system removes gaseous waste (carbon dioxide) from the blood.

What is the respiratory system?

300

These have a similar structure and work together to accomplish a similar function at the tissue level of organization.

What are cells?

300

Your pinky toe is this anatomical direction relative to your big toe.

What is lateral?

300

Increasing muscle contractions during childbirth is an example of this type of feedback loop.

What is a positive feedback loop?

300

Blood flowing around the body is an example of these two life functions.

What are movement and homeostasis?

400

The pituitary gland, pineal gland, and thyroid gland are part of this system.

What is the endocrine system?

400

Two or more organs work together to accomplish a similar body function at this level of organization.

What are organ systems?

400

This plane divides the body into front and back sections.

What is the coronal (frontal) plane?

400

You enter a dark room and your pupils dilate to allow in more light. In this example, your eyes serve these two roles in homeostasis.

What are receptor (sensor) and effector?

400

A phosphate group is removed from ATP to assemble simple amino acids into a complex polypeptide molecule. This is an example of a(n) _____________ reaction.

What is an anabolic reaction?

500

This system contains the largest organ of the body.

What is the integumentary system?

500

RNA, lactase, and acetylcholine all work at this level of organization.

What is the chemical level?

500

Male gorillas have been observed beating on this body cavity as a sign of aggression or dominance.

What is the thoracic cavity?

500

A person experiences a homeostatic disorder and cannot transmit efferent signals from their control center. This is a probable result of that malfunction.

What is death?

500

Meiosis is the process involved in producing the specialized cells necessary for this life function in humans.

What is reproduction?

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