Which of the following is not considered an abdominopelvic region?

The tendency for physiological systems to stabilize internal conditions is called

The nucleus of an atom consists of

The chemical behavior of an atom is determined by the

Which of the following descriptors is false regarding enzymes?

Which pH is closest to normal body pH?

The smallest living unit within the human body is

Match the organelle (1-4) with the correct description (5-8).

1) mitochondrion                     5) synthesizing molecules

2) centriole                              6) liquid in cell

3) endoplasmic reticulum        7) provides cell with energy

4) cytosol                                 8) aids the formation of the spindle apparatus

Each of the following is an example of a nonmembranous organelle except

The movement of oxygen from an area of high concentration to an area of low concentration is an example of

The tissue that always has an apical and a basal surface is ________ tissue.

Which tissue is correctly paired with its category of connective tissue?

Loose connective tissue functions in all of the following ways except

________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist, and ________ sweat glands are found only in a few areas.

The layer of stem cells that constantly divide to renew the epidermis is the

Which of the following is formed in the skin when it is exposed to sunlight?

The adult skeleton contains ________ major bones.

  Which of the following is true of osteoclasts?

The following are important steps in the process of endochondral ossification. What is the correct order for these events?

1. Enlarged chondrocytes die.

2. Osteoblasts replace calcified cartilage with spongy bone.

3. Chondrocytes enlarge and the surrounding matrix begins to calcify.

4. Blood vessels grow around the edges of the cartilage.

5. Perichondrial cells become osteoblasts and produce a superficial layer of bone.

The following are major steps in the process of intramembranous ossification:

1. Clusters of osteoblasts form osteoid that becomes mineralized.

2. Osteoblasts differentiate within mesenchymal connective tissue.

3. Spicules of bone radiate out from the ossification centers.

4. Mesenchymal cells aggregate.

What is the correct order for these events?

  Calcitonin does all of the following except

The four curves of the adult spinal column are not all present at birth. Which of the following are the secondary curves, which do not appear until several months later?

   Which of the following bones is not part of the appendicular skeleton?

Which of the following is the heel bone?

  Pronation is defined as

  Put the following structures in order from superficial to deep.

      1.   muscle fiber

      2.   perimysium

      3.   myofibril

      4.   fascicle

      5.   endomysium

      6.   epimysium

A synovial joint is an example of a(n)

At rest, the tropomyosin molecule is held in place by

    The following is a list of the events that occur during a muscle contraction. What is the correct sequence of these events?

1. Myosin cross-bridges bind to the actin.

2. The free myosin head splits ATP.

3. Calcium ion is released from the sarcoplasmic reticulum.

4. The myosin head pivots toward the center of the sarcomere.

5. Calcium ion binds to troponin.

6. The myosin head binds an ATP molecule and detaches from the actin.

Put the following events of excitation-contraction coupling in the order in which they occur.

      1. Excitation

      2. Sarcomere shortening

      3. Generation of muscle tension

      4. Neural control

5. Contraction cycle begins

      6. Release of calcium ions

Put the following events of the neuromuscular junction in the order in which they occur.

1. Action potential is propagated in the sarcolemma.

2. Acetylcholine binds to ligand gated sodium channels.

3. Action potential arrives at the neuromuscular junction.

4. Vesicles full of acetylcholine are stored at the axon terminal.

5. Acetylcholine is released into the synaptic cleft.

The "kissing muscle" that purses the lips is the

Which of the following are members of the hamstring group?

The ________ nervous system controls the skeletal muscles.

   The following are the main steps in the generation of an action potential.

1. Sodium channels are inactivated.

2. Voltage-gated potassium channels open and potassium moves out of the cell, initiating repolarization.

3. Sodium channels regain their normal properties.

4. A graded depolarization brings an area of an excitable membrane to threshold.

5. A temporary hyperpolarization occurs.

6. Sodium channel activation occurs.

7. Sodium ions enter the cell and depolarization occurs.

What is the proper sequence of these events?

At the normal resting membrane potential of a typical neuron, its sodium-potassium exchange pump transports

Place the following events of a reflex arc in the correct order:

1) motor neuron activation, 2) sensory neuron activation, 3) sensory receptor activation, 4) Information processing, 5) effector response.

During development, three primary brain vesicles form. The three vesicles are the

The system that functions in tying together emotions, motivation and memory is the

   The complex integration of sensory information with visual and auditory memories occurs in this area near the auditory cortex?

The term general senses refers to sensitivity to all of the following, except

Sensory information from all parts of the body is routed to

   The parasympathetic nervous system is especially active during which physiological state?

Parasympathetic functions include all of the following, except

The human lens focuses light on the photoreceptor cells by

The ________ ear collects sounds waves and transmits them to the ________ ear, which contains auditory ossicles.

Which of the following is not one of the six primary taste sensations?

There are three different types of cones, each one sensitive to different light energies. These cones are designated

A ray of light entering the eye will encounter the following structures in which order?