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Anatomy
week 1 - 7
Question | Answer |
---|---|
In the human nervous system: | there are almost equal numbers of glia cells and neurons |
A neuron that transmits a nerve impulse toward the central nervous system is called a(n): | sensory neuron. |
Which is true of a reflex arc? | It always consists of an afferent neuron and an efferent neuron. |
The afferent pathways of the autonomic nervous system: | carry feedback information to integrating centers in the brain |
Which of the following is the deepest connective tissue layer of a nerve? | Endoneurium |
Most unipolar neurons are usually: | sensory neurons |
The posterior arm muscle that extends the forearm is the: | triceps brachii. |
The origin of a muscle is on the femur, and the insertion is on the tibia. When it contracts, it bends the knee. Its fibers run parallel to the body. Which of the following terms might be part of its name? | Both A and C --- Rectus. Oblique, Femoris |
The muscle that extends and adducts the arm is the: | latissimus dorsi. |
Which of the following is a facial bone? | zygomatic bone |
Which of the following is a bone in the axial skeleton? | Vertebra |
Which of the following is not a function of the integral membrane proteins? | All of the above are functions of the integral membrane proteins. -- Acting as receptors, Signal transduction, Identification of “self” |
Tiny indentations of the plasma membrane that resemble caves are called: | caveolae |
Which of the following is not true about ribosomes? | Surrounded by a membrane structure |
Which of the following is not true of the rough endoplasmic reticulum? | It makes lipids and carbohydrates |
Projections from the cell that move materials and mucus are called: | cilia. |
Which are the organelles that allow for the recycling of amino acids in the cell? | Proteasomes |
The enzyme catalase is an important chemical in the functioning of the: | peroxisomes. |
An example of a catabolic process is: | hydrolysis. |
An isotope of an element contains different numbers of ____ from other atoms of the same element. | Neutrons |
AB + CD → AD + CB is an example of a(n) _____ reaction. | Exchange |
The atomic number of carbon is 6. How many unpaired electrons are in its outer shell? | Four |
Which of the following bonds are the weakest? | Hydrogen |
An example of an element would be: | Ne. |
A magnesium atom has an atomic number of 12, an atomic mass of 25, and a +2 charge. This atom would contain _____ protons, _____ neutrons, and _____ electrons. | 12; 13; 10 |
An example of a catabolic process is: | hydrolysis. |
Carbon has an atomic number of 6. The number of electrons found in the first shell is: | two. |