which type of tissue connects muscles to bones
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HESI A2

HESI A2 Anatomy and Physiology 2023

1. Which connective tissue type attaches muscles to bones?

Correct answer: B

Rationale: Tendons are the correct answer. They are strong connective tissues that connect muscles to bones, allowing movement when muscles contract. Ligaments connect bones to other bones, providing joint stability. Cartilage is a firm, flexible connective tissue present in joints and the outer ear. Fascia is a connective tissue that surrounds muscles, blood vessels, and nerves, offering support and protection. Therefore, the correct tissue type that connects muscles to bones is tendons.

2. Which gland is responsible for regulating metabolism and growth?

Correct answer: A

Rationale: The correct answer is the Thyroid gland. The thyroid gland is responsible for regulating metabolism and growth. It produces hormones such as thyroxine (T4) and triiodothyronine (T3), which play essential roles in controlling metabolic processes, growth, and development throughout the body. Choice B, the Pituitary gland, although important for hormone regulation, is not primarily responsible for regulating metabolism and growth. Choices C and D, the Adrenal gland and Pineal gland, respectively, have different functions and are not primarily involved in regulating metabolism and growth.

3. Which type of joint allows for rotational movement?

Correct answer: B

Rationale: A pivot joint, such as the one found in the neck, allows for rotational movement, enabling the head to turn from side to side. This type of joint provides a specific axis of rotation, allowing for a turning motion around that axis. Choice A, the hinge joint, primarily allows movement in one plane, like the elbow joint's flexion and extension. Choice C, the ball and socket joint, allows for a wide range of motion in multiple directions, but it is not primarily known for rotational movement. Choice D, the saddle joint, allows for movements like bending, straightening, and limited rotation, but it is not primarily designed for rotational movement like the pivot joint.

4. Which organelle in the cell contains the genetic material?

Correct answer: B

Rationale: The correct answer is B, Nucleus. The nucleus is the organelle in the cell that contains the genetic material (DNA). DNA within the nucleus determines the cell's functions and characteristics, making it essential for cell function and replication. Choice A, Ribosome, is responsible for protein synthesis, not genetic material storage. Choice C, Mitochondria, produces energy but does not contain the genetic material. Choice D, Endoplasmic reticulum, is involved in protein synthesis and lipid metabolism but does not house the genetic material.

5. A tissue examined under the microscope exhibits the following characteristics: cells found on the internal surface of the stomach, no extracellular matrix, cells tall and thin, no blood vessels in the tissue. What type of tissue is this?

Correct answer: A

Rationale: The correct answer is 'Epithelial.' Epithelial tissue is characterized by cells lining surfaces and cavities, such as the stomach. It does not contain blood vessels, and the cells are tall and thin. The absence of an extracellular matrix is typical of epithelial tissue, making it the most suitable choice in this scenario. Connective tissue, like cartilage and nervous tissue, have different characteristics that do not align with the description provided in the question.

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