Carpal Bones and Hand Anatomy

This tutorial covers the anatomy of the hand, focusing on the carpal, metacarpal, and phalanges bones. It explains the wrist joint's articulation with the carpal bones and the arrangement of these bones into proximal and distal rows. A mnemonic is provided to help remember the carpal bones. The video also discusses the metacarpal bones, phalanges, and various joints in the hand, including MCP, PIP, and DIP joints. Additionally, it highlights the importance of the scaphoid bone's blood supply and the risk of avascular necrosis due to fractures.

What are the three main types of bones found in the hand?

• Radius, Ulna, Humerus

• Carpal, Tarsal, Metacarpal

• Tarsal, Metatarsal, Phalanges

• Carpal, Metacarpal, Phalanges

Which carpal bones articulate with the radius?

• Capitate and Hamate

• Trapezium and Trapezoid

• Pisiform and Triquetral

• Scaphoid and Lunate

What is the mnemonic to remember the order of carpal bones?

• She Looks Too Pretty Try To Catch Her

• Some Lovers Try Positions That They Can't Handle

• Tall Camels Never Consume Large Peanuts

• Never Lower Tillie's Pants, Mother Might Come Home

Which carpal bone is located on the thumb side?

• Capitate

• Hamate

• Trapezoid

• Trapezium

How are the metacarpal bones numbered?

• From thumb to little finger

• From little finger to thumb

• From fingertips to wrist

• From wrist to fingertips

How many phalanges are present in the thumb?

• Two

• Three

• Four

• Five

What type of joint is found between the metacarpal and phalanges?

• Saddle joint

• Metacarpophalangeal joint

• Carpometacarpal joint

• Interphalangeal joint

Which joints are commonly affected in rheumatoid arthritis?

• Saddle joints

• Carpometacarpal joints

• Distal interphalangeal joints

• Metacarpophalangeal and proximal interphalangeal joints

What is the risk associated with a scaphoid bone fracture?

• Rheumatoid arthritis

• Carpal tunnel syndrome

• Osteoporosis

• Avascular necrosis

Where does the blood supply enter the scaphoid bone?

• Proximally

• Distally

• Medially

• Laterally