Limbs

Question 1

What are the three composed recognized regions of tetrapod’s (forelimbs and hindlimbs)

Answer 1

-Autopodium (The distal end of the limb consists of numerous elements composing the wrist and ankle that support their respective digits
Zeugopodium-middle limb region, with two internal supportive element, ulna and radius of the forearm, tibia fibula of shank
Stylopodium-limb region closest to the body, with a single element humerus of the upper arm femur of the thigh

Question 2

Autopodium

Answer 2

Forelimb-manus (wrist palm finger)

Hindlimb-pes (ankle sole toes)

Question 3

Zeugopodium

Answer 3

Forelimb-forearm

Hindlimb- shank (crus)

Question 4

Stylopodium

Answer 4

Forelimb-upper arm

Hindlimb-thigh

Question 5

Basic components of the fin in the limb

Answer 5

• The fin is composed of pterygiophores, Basals and radios and dermal fin rays. Fin rays are called LEPIDOTRICHIA in bony fishes and CERATOTRICHIA in elasmobranchs
• The limb, either forelimb or hindlimb, includes three regions, STYLOPODIUM (upper) ZEUGOPODIUM (middle) AUTOPODIUM (manus/pes)

Question 6

What is a chiridiun

Answer 6

Limb, A muscular appendage with well-defined joints bearing digits (fingers and toes) not a fin at it’s end