PHYSIOLOGY- 2 MARKS- PART 5:

CARBOHYDRATES:

  • Carbohydrates are present in food in the form of starch, sugar and fiber.
  • A carbohydrate is a molecule containing carbon, oxygen and hydrogen, and can be either simple or complex.
  • Monosaccharides are a single sugar molecule, while disaccharides are two simple sugar molecules linked together.
  • More complex carbohydrates are called polysaccharides and are multiple sugar molecules linked together.
  • Carbohydrates are primary energy producers.
  • The two main forms of carbohydrates are: sugars such as fructose, glucose, and lactose. Starches, which are found in foods such as starchy vegetables (like potatoes or corn), grains, rice, breads, and cereals.

Continue reading “PHYSIOLOGY- 2 MARKS- PART 5:”

ANATOMY 2MARKS-PART 6

ORBICULARIS OCULI:

Origin:
Palpebral part: to the medial palpebral ligament and adjacent bone on the medial side of the orbit.
Orbital part: to a slip of bone adjacent to the orbit on the orbital process of the frontal bone, to the frontal process of the maxilla, and to the medial palpebral ligament between the two bony areas.
Insertion:
Palpebral part: into the skin of the eyelids, blending with levator palpebrae superioris and continuing on to the lateral palpebral raphe.
Orbital part: into the skin surrounding the orbit and blending with adjacent facial muscles
Action: Closes the eyelids
Innervation: Temporal and zygomatic branches of the facial nerve (cranial nerve VII)
Blood Supply: Branches from the ophthalmic artery

Continue reading “ANATOMY 2MARKS-PART 6”