Where is the gastrocnemius vein in relation to the femoral vein?
A. Lateral
B. Distal
C. Superior
D. Ventral
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The gastrocnemius vein is found in the calf. The femoral vein is found in the proximal anterior thighs/pelvis.
Since the gastrocnemius vein is found below the femoral vein it is distal or inferior to the femoral vessel.
Therefore, the Correct Answer is B.
More Questions on TEAS 7 Science Practice Test 1
Question 1:
A chemistry experiment is performed to determine the effect of a nonvolatile solute on the boiling point of water. Three trials are performed in which 10 mg, 20 mg, and 30 mg of salt are added to 500 mL of distilled water. Each solution is heated on a hot plate, and the elevated boiling points are recorded.
Determine the dependent and independent variables in this question.
A. The independent variable is the amount of salt, and the dependent variable is the temperature at which the water boils.
B. The independent variable is the amount of water, and the dependent variable is the temperature at which the water boils.
C. The independent variable is the temperature at which the water boils, and the dependent variable is the amount of salt.
D. The Independent variable is the amount of salt, and the dependent variable is the amount of water.
The Correct Answer is A.In a scientific experiment, the dependent variable is the condition that is being tested and measured. The independent variable is the condition that is being changed or controlled. In this example, the amount of salt is varied, and the boiling point of water is measured. Therefore, the independent variable is the amount of salt, and the dependent variable is the temperature at which the water bolls.
Question 2:
In general, where in the periodic table of elements are the elements with the largest atomic radii located?
A. Upper-right corner
B. Upper-left corner
C. Bottom-left corner
D. Bottom-right comer
The Correct Answer is C.In general, atomic radius increases moving down a group due to the increasing number of electron shells. In general, atomic radius decreases moving from left to right across a period due to the increasing number of protons in the energy level. Therefore, atoms of elements in the bottom-left corner of the periodic table tend to have the largest atomic radii.
Question 3:
Where is the scapula in relation to the olecranon?
A. Distal
B. Lateral
C. Ventral
D. Superior
The Correct Answer is D.The scapula, commonly known as the shoulder blade, is above the olecranon, commonly known as the elbow. Conversely, the olecranon is distal or inferior to the scapula.
Question 4:
Which structure of the nervous system carries action potential in the direction of a synapse?
A. Cell body
B. Axon
C. Neuron
D. Myelin
The Correct Answer is B.Axons carry action potential in the direction of synapses. Axons are the long, fiber-like structures that carry information from neurons. Electrical impulses travel along the body of the axons, some of which are up to a foot long.
A neuron is a type of cell that is responsible for sending information throughout the body. There are several types of neurons, including muscle neurons, which respond to instructions for movement; sensory neurons, which transmit information about the external world; and interneurons, which relay messages between neurons. Myelin is a fat that coats the nerves and ensures the accurate transmission of information in the nervous system.
Question 5:
Which is NOT a type of protein?
A. Fibrous
B. Membrane
C. Globular
D. Unsaturated
The Correct Answer is D.There are three types of proteins: fibrous, membrane, and globular. Fibrous or structural proteins consist of collagen, elastin, and keratin. Membrane proteins are interactive and anchored to a membrane. Globular proteins consist of functional proteins like enzymes, hemoglobin, and insulin.
Therefore unsaturated is the correct answer.
Question 6:
What is most likely the pH of a solution containing many hydroxide ions (OH-) and few hydrogen ions(H+)
A. 2
B. 6
C. 7
D. 9
The Correct Answer is D.A solution that contains more hydroxide ions than hydrogen ions is a base, and bases have a pH greater than 7, so the only possible answer is choice D. 9.
Question 7:
What is a hypothetical explanation for an occurrence that is based on prior knowledge called?
A. Independent variable
B. Dependent variable
C. Trial
D. Hypothesis
The Correct Answer is D.A hypothesis is the use of prior knowledge in order to provide a hypothetical explanation for why something may or may not occur. A hypothesis can be proved wrong or right based on the results of the experiment and repeated trials.
Question 8:
Which of the following is exchanged between two or more atoms that undergo ionic bonding?
A. Neutrons
B. Transitory electrons
C. Valence electrons
D. Electrical charges
The Correct Answer is C.An ionic bond forms when one atom donates an electron from its outer shell, called a valence electron, to another atom to form two oppositely charged atoms.
Question 9:
Identify the location where neurotransmitters are stored immediately prior to use.
A. Area A
B. Area B
C. Area C
D. Area D
The Correct Answer is B.Area B is a synaptic vesicle where the neurotransmitters are stored just before use.
Question 10:
When animals eat, insulin is released from the pancreas, stimulating glucose uptake by the liver. When glucose levels drop, the pancreas reduces insulin release. This is an example of which mechanism for maintaining homeostasis?
A. Negative feedback
B. Positive feedback
C. Stress response
D. Parasympathetic regulation
The Correct Answer is A.Maintaining homeostasis means that conditions are kept stable and relatively constant. Negative feedback is a mechanism used to reverse or minimize changes in a system. In this example, negative feedback is used to keep the body's glucose and insulin levels stable. Positive feedback (B) is a mechanism that Increases changes in a system. A stress response (C) describes the body's reaction to threats or pressures. Parasympathetic regulation (D) refers to activities of the nervous system, including slowing the heart rate and boosting Intestinal activity.