Hominid/hominin intro/primates

Create tables similar to the one at the bottom for all parts of the syllabus. - remeber colour correlates ( memorise terminology)  

Brain Prognathism and Dentition

Relative size of cerebral cortex

• Increased size of the cerbral cortex

enables them to move around and locate food

a greater variety of behavioural responses

MPrognathism and dentition

Brain is bigger.

Cranial capacity is larger compared to most earlier hominids

• Larger brain provided enhance cognitive abilities’

Convolution is increased compared to earlier hominids

• Larger surface area for neurons allowing for more enhance congitive functions - providing advantages in their changing enviroments

Frontal lobe is increased compared to earlier hominids

• is responsible for higher functions of thinking and reasoning.

Hominins diet changed

Diastema (gap between incisors and canines) is reduced compared to earlier hominids

• due to changes in social and behavioural dynamics

Incisors and cannines is reduced compared to earlier hominids

Dental Arcade - modern humans the dental arcade is more V shaped wheras earlier hominids is more U shaped

Zygomatic arch and temporal muscles

Sagittal crest is absent or greatly reduced in modern hominids

Brow Ridge has reduced compared to ver