HBS Units 3 and 4 Review

Front

What is dysbiosis?

Back

Dysbiosis refers to an imbalance in the microbial communities in the body, often leading to health issues.

Front

List three possible causes of dysbiosis.

Back

1. Overuse of antibiotics 2. Chronic stress 3. Unhealthy diet

Front

What is the correct pathway of light through the eye?

Back

Cornea → Aqueous humor → Pupil → Lens → Vitreous humor → Retina → Optic nerve → Occipital lobe

Front

What part of the eye is responsible for focusing light?

Back

The lens is responsible for focusing light onto the retina.

Front

What is the function of the cornea?

Back

The cornea helps to focus light as it enters the eye and provides protection.

Front

What is the upper respiratory tract?

Back

The upper respiratory tract includes the nose, nasal cavity, sinuses, pharynx, and larynx.

Front

Which structure is part of the upper respiratory tract?

Back

Pharynx is part of the upper respiratory tract.

Front

What are prions?

Back

Prions are non-living, submicroscopic proteins that can cause infectious diseases.

Front

What is the function of valves in the heart?

Back

Valves regulate blood flow through the heart and prevent backflow.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygen-rich blood away from the heart, while veins carry oxygen-poor blood back to the heart.