Lecture 2 - Human Form & Function

Question 1

Superphylum

Answer 1

Coelomate

• segmented body wall
• hollow fluid filled (closed) body cavity
• possesses gut tube
• develop 3 germ layers

Question 2

Phylum

Answer 2

Chordata

• hollow nerve cord or neural tube (from ectoderm, dorsal side)
• notochord (from mesoderm, ventral side)
• pharyngeal pouches (at cranial end of gut tube)

Question 3

Subphylum

Answer 3

Vertebrate (backbone)

• spine, skull & skeletal
• spinal cord & spinal nerve
• 4 limbs & 5 digits

Question 4

Class

Answer 4

Mammalia

• skin & appendages (hair, glands)
• placenta
• warm blooded (4 chamber heart, 2 systems of blood circulation)
• expanded forebrain (higher cognitive function)

Question 5

Order

Answer 5

Primates

• binocular vision (eyes face forward, overlapping vision allow 3D vision)
• opposable thumb
• clavicle (freedom of arm movement)
• nails rather than claws

Question 6

Family

Answer 6

Hominidae

• lack of tail
• larger body size
• more upright posture

Question 7

Species

Answer 7

Homo sapiens

• upright posture (only bipedal)
• non opposable toe
• line of gravity is between feet

Question 8

Kingdom

Answer 8

Animalia