Nokea
Which compound is associated with a burning sensation as a result of anaerobic respiration?
- A. Carbon dioxide
- B. Lactic acid
- C. Oxygen
- D. Glucose
Correct Answer: B
Rationale: During anaerobic respiration, the body produces lactic acid as a byproduct when oxygen is limited. The accumulation of lactic acid can lead to a burning sensation in muscles due to its build-up. Therefore, lactic acid is the correct choice as it is the compound associated with the burning sensation related to anaerobic respiration.
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Where does digestion begin in the digestive system?
- A. Small intestine
- B. Oral cavity
- C. Esophagus
- D. Sternum
Correct Answer: B
Rationale: Digestion begins in the oral cavity where food is broken down into smaller pieces by chewing and mixed with saliva containing enzymes that start the process of breaking down carbohydrates. This mixture of food and saliva then travels down the esophagus into the stomach for further digestion. The oral cavity is where the mechanical and chemical breakdown of food initiates, setting the stage for the rest of the digestive process.
Where would you expect to find an especially thick stratum corneum in the body?
- A. Back of the hand
- B. Heel of the foot
- C. Abdomen
- D. Over the shin
Correct Answer: B
Rationale: The stratum corneum is the outermost layer of the epidermis, providing a protective barrier to the skin. Areas of the body that experience more friction and pressure tend to have a thicker stratum corneum. The heel of the foot is subjected to constant pressure and friction during walking and standing, leading to the development of a particularly thick stratum corneum to protect against wear and tear.
A professional boxer gets punched in the nose resulting in a deviated septum. Which bone is most likely to be involved?
- A. Sella turcica.
- B. Vomer
- C. Calcaneous.
- D. Malleus.
Correct Answer: B
Rationale:
What are the connective tissue cells found in nerve tissue called?
- A. Osteoblasts
- B. Neuroglia
- C. Osteocytes
- D. Arterioles
Correct Answer: B
Rationale: Within nerve tissue, in addition to neurons responsible for transmitting nerve impulses, there are connective tissue cells known as neuroglia. Neuroglia play a vital role in providing support, insulation, and protection for neurons within the nervous system. Osteoblasts are involved in bone formation, osteocytes are mature bone cells, and arterioles are small arteries responsible for regulating blood flow, not found in nerve tissue.
An over-production of cerumen can accumulate in which area?
- A. In the nose.
- B. On the eyelids and eyes.
- C. In the external ear canals.
- D. On the teeth
Correct Answer: C
Rationale: