Ex3 sex

Question 1

X chromosome

Answer 1

~1000 genes
brain genes
disease genes

Question 2

Y Chromosome

Answer 2

<100 genes
SRY genes for maleness
Anti-Mullerian Gene
Sperm production genes

Question 3

Sex refers to …

Answer 3

biological traits

Question 4

Gender refers to..

Answer 4

psycho-social states

Question 5

True or False, women’s menstrual cycles mess up data

Answer 5

true

Question 6

Human male brains are approx ___ bigger than female brains

Answer 6

10%

Question 7

What is one possibility for the size difference?

Answer 7

Males have larger muscle mass, more muscle cells imply more neurons to control them.

Question 8

Female brains contain more…

Answer 8

grey matter

Question 9

Male brains contain more

Answer 9

white matter

Question 10

Part of the brain grow in size during which seasons?

Answer 10

mating seasons

Question 11

in most animals but not humans____and ____ occur only during____

Answer 11

In most animals but not humans sexual attractiveness and mating occur only during a specific phase of the season

Question 12

Dimorphisms in human brains are…

Answer 12

Smal;, subtle, few and mostly unknown funcrion

Question 13

Which part of the brain is distinctively dimorphic in mamamls and some in humans

Answer 13

an area surrounding the third ventricle (hypothalamas)

Question 14

which nucleus in the spinal chord is larger in men than women?

Answer 14

Onuf’s nucleus

Question 15

what does Onuf’s nucleus control?

Answer 15

a muscle at the base of the penis in men and at the opening of the vagina in women

Question 16

which brain structures have been the object of much controversy regarding dimorphism?

Answer 16

The corpus callosum and the anterior commissure

Question 17

what is the most reliable conclusion we can draw about human sexual dimorphism?

Answer 17

there are so few of them in the brain. You have to look very hard to find them.

Question 18

Brain sex dimorphisms M>F

Answer 18

Total brain mass
white matter
CSF
Amygdala
Hypothalamus

Question 19

Brain sex Dimorphism F>M

Answer 19

Grey Matter
Striatum
Hippocampus
Broca’s area

Question 20

Girls have greater___(on average) than boys

Answer 20

verbal abilities

Question 21

T or F: reliable difference have not been found in vocabulary or verbal reasoning between men and women

Answer 21

true

Question 22

Women outperform men on tests of:

Answer 22

perceptual speed (eg recognizing letters, numbers, objects, pictures or patterns)

Question 23

Men tend to perform better than and differently from women at

Answer 23

Navigation

Question 24

In navigation, men use:

Answer 24

distance, direction, and geometric shapes

Question 25

in navigation women rely on

Answer 25

landmarks

Question 26

Numerous studies have shown that men are better at___than women

Answer 26

Spatial tasks (map reading, mental rotations)

Question 27

Men perform better on ____ of aiming at and hitting a target, as well as throwing and intercepting projectiles

Answer 27

visual-spatial