Practice Science TEAS Test

Correct Answer: B

Rationale: Rationale: Sulfur (atomic number 16) typically has 16 protons and 16 electrons in a neutral state. A negative ion gains an electron, so it would have 16 protons, 16 neutrons, and 17 electrons to maintain charge neutrality. Therefore, choice B (16 neutrons, 17 electrons) is correct. Choices A, C, and D are incorrect as they do not account for the addition of an extra electron in the negative ion, resulting in an incorrect number of electrons.

Correct Answer: A

Rationale: Abduction is the movement away from the midline of the body. This is the correct answer because abduction refers to a lateral movement away from the body's midline, such as when raising your arms sideways. Option B is incorrect because it describes flexion, which decreases the angle of a joint. Option C is incorrect as it describes extension, increasing the angle of a joint. Option D is also incorrect as it describes adduction, moving towards the body's midline.

Correct Answer: B

Rationale: The correct answer is B: Sudoriferous gland. Sudoriferous glands, also known as sweat glands, are responsible for producing sweat to regulate body temperature. They are distributed throughout the skin and play a vital role in maintaining homeostasis. Sebaceous glands (A) produce sebum, hair follicles (C) are responsible for hair growth, and melanocytes (D) produce melanin for skin pigmentation. Therefore, B is the correct choice as it directly relates to sweat production in the skin.

Correct Answer: C

Rationale: The correct answer is C: Spleen. The spleen filters pathogens from the blood through its white pulp, which contains immune cells that detect and destroy harmful microorganisms. The spleen also removes old or damaged red blood cells. A: Lymph nodes filter lymph, not blood. B: Kidneys filter waste from the blood but not pathogens. D: Pancreas is primarily involved in digestion and hormone regulation, not blood filtration.

Correct Answer: C

Rationale: The correct answer is C: Near to the midline of the body. "Medial" refers to being close to the midline of the body or a structure. This term is commonly used in anatomy to describe the position of a body part relative to the midline. Choice A is incorrect as "being face down" is described as prone. Choice B is incorrect as "on the front of the body or limb" is described as anterior. Choice D is incorrect as "above or on top of the lungs" is described as superior. In summary, the term medial specifically refers to proximity to the midline of the body, distinguishing it from the other choices provided.