Anatomy and Physiology Glossary: Muscles, Bones, and Veins

Study Notes

The tricep is a large muscle that covers the entire back of the upper arm and extends the forearm.
The ulna is the inner and larger bone of the forearm.
Veins are thin-walled blood vessels that are less elastic than arteries and contain cup-like valves to keep blood flowing in one direction to the heart and prevent backward flow.
Veins carry blood containing waste products back to the heart and lungs for cleaning and to pick up oxygen.
Venules are small vessels that connect capillaries to veins, collecting blood from capillaries and draining it into veins.

The zygomatic bones form the prominence of the cheeks.
The zygomatic nerve affects the muscle of the upper part of the cheek.
The zygomaticus major muscles extend from the zygomatic bone to the angle of the mouth, pulling the mouth upward and backward as in laughing.
The zygomaticus minor muscles are located on both sides of the face, extending from the zygomatic bone to the upper lip, and pull the upper lip backward, upward, and outward, as when smiling.

Tricep: largest muscle in the back of the upper arm, responsible for extending the forearm.
Ulna: inner and larger bone of the forearm.
Veins: thin-walled blood vessels with cup-like valves that ensure one-way blood flow to the heart and lungs; carry blood with waste products for cleaning and oxygen pickup.

Venules: small vessels connecting capillaries to veins; collect blood from capillaries and drain into veins.

Zygomatic Bones: form the prominence of the cheeks.
Zygomatic Nerve: affects the muscle of the upper part of the cheek.
Zygomaticus Major Muscles: extend from zygomatic bone to the angle of the mouth; pull the mouth upward and backward, as in laughing.
Zygomaticus Minor Muscles: extend from zygomatic bone to upper lips; pull the upper lip backward, upward, and outward, as in smiling.