Pharmacokinetics
Vertebral column
Skull and Thoracic
100

What is pharmacokinetics?

This branch of pharmacology describes what the body does to the drug.

100

How many cervical vertebrae are present in the vertebral column?

7

100

How many pairs of ribs form the thoracic cage?

12

200

Which route of administration gives 100% bioavailability?

Intravenous

200

Which cervical vertebra is known as the vertebra prominens?

C7

200

Which ribs are classified as floating ribs?

11 and 12

300

Which form of a drug crosses cell membranes more easily?

The unionised, lipophilic form.

300

Which vertebra uniquely articulates with the first rib?

T1

300

Which joint allows the head to nod “yes”?


The atlanto-occipital joint between the occipital condyles and the atlas.

400

What type of elimination kinetics removes a constant fraction of a drug over time?

First-order kinetics.

400

Which feature is unique to the atlas (C1)?

No vertebral body

400

What are the three main parts of the sternum?

The manubrium, body and xiphoid process.

500

What is involved in Phase 1 reactions?

Oxidation via cytochrome P450

500

A vertebra has a large kidney-shaped body, a triangular vertebral foramen and a short, blunt spinous process. Which region does it belong to?

Lumbar region

500

Someone sustains trauma at the sternal angle. Which rib articulates at this landmark?

2nd rib