Bio 165 Lab Practical 3

Front 1

Brain

Back 1

Front 2

Medulla Oblongata

Functions:

-Contains 3 vital reflex centers: Cardiac, respiratory, Vasomotor

Back 2

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Front 3

Pons

Function:

-contains nuclei of some of the cranial nerves

Back 3

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Front 4

Midbrain

Back 4

Front 5

Corpora Quadrigemina

Back 5

Front 6

Superior Colliculi

Functions:

-reflex center for visual stimuli

Back 6

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Front 7

Inferior Colliculi

Function:

-Reflex center for auditory stimuli

Back 7

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Front 8

Cerebellum

Function:

-motor area of the brain that coordinates certain subconscious movement of skeletal muscles

Back 8

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Front 9

Diencephalon

Back 9

Front 10

Thalamus

Function:

-relay station for sensory stimuli between the cerebrum of the brain and the spinal cord.

Back 10

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Front 11

Hypothalamus

Function:

-Control of body temperature

Back 11

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Front 12

Infundibulum

Back 12

Front 13

Pituitary gland

Function:

-Secretes many hormones

Back 13

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Front 14

Pineal Gland

Function:

- controls the onset of puberty and other biorhythms

Back 14

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Front 15

Cerebrum

Back 15

Front 16

Frontal Lobe

Function:

-contains primary motor cortex (voluntary control)

Back 16

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Front 17

Parietal Lobe

Function:

-contains primary sensory cortex

Back 17

Know Funtions

Front 18

Temporal Lobe

Function:

-involved in the conscious perception of sound and smell

Back 18

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Front 19

Occipital Lobe

Function:

-involved in the conscious perception of visual stimuli

Back 19

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Front 20

Corpus Callosum

Function:

-connects regions of one hemisphere of the cerebrum with the same regions of the other hemisphere of the cerebrum

Back 20

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Front 21

Ventricles

Function:

-Produces cerebrospinal fluid

Back 21

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Front 22

Lateral Ventricle

Back 22

Front 23

Interventricular Foramen

Back 23

Front 24

Third ventricle

Back 24

Front 25

Cerebral Aqueduct

Back 25

Front 26

Fourth Ventricle

Back 26

Front 27

Cranial Nerves

Back 27

Front 28

Gray Matter

Function:

-contains the cell bodies of neurons

Back 28

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Front 29

Dorsal Horn

Back 29

Front 30

Ventral Horn

Back 30

Front 31

Dorsal Root

Back 31

Front 32

Dorsal Root Ganglion

Function:

-contains cell bodies of the sensory neurons

Back 32

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Front 33

ventral Root

Back 33

Front 34

Spinal nerve

Function:

-contains both sensory and motor fibers

Back 34

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Front 35

White Matter

Function:

-contains the myelinated axons of motor and sensory neurons

Back 35

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Front 36

Meninges

Function:

-coverings of connective tissue that surround the brain and spinal cord.

Back 36

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Front 37

Dura Mater

Back 37

Front 38

Subdural Space

Back 38

Front 39

Arachnoid Mater

Back 39

Front 40

Subarachnoid Space

Function:

-collects cerebrospinal fluid which is than absorbed into the blood.

Back 40

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Front 41

Pia Mater

Back 41

Front 42

Denticulate Ligaments

Function:

-holds the spinal cord in place

Back 42

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Front 43

Brain Stem

Back 43

Front 44

Eye

Back 44

Front 45

Lacrimal Glands; Superior

Function:

-secrete lacrimal fluid (tears)

Back 45

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Front 46

Lacrimal Glands; Inferior

Function:

-Secrete lacrimal fluid (tears)

Back 46

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Front 47

Lacrimal Canals; Superior

Function:

-funnel the tears into the lacrimal sac.

Back 47

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Front 48

Lacrimal Canals; Inferior

Function:

-funnel the tears into the lacrimal sac.

Back 48

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Front 49

Lacrimal Sac

Function:

-collects tears and empties them into the nasolacrimal duct.

Back 49

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Front 50

Nasolacrimal Duct

Function:

-collects tears from the lacrimal sac and epties them into the nasal cavity.

Back 50

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Front 51

Fibrous Tunic

Back 51

Front 52

Sclera

Function:

-Gives the eye its shape, protects the delicate internal layers.

Back 52

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Front 53

Cornea

Function:

- acts like a window that controls and focuses the entry of light into the eye

Back 53

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Front 54

Vascular Tunic

Back 54

Front 55

Choroid

Function:

-contains blood vessels that serve the retina, and pigment that darkens the inner surface of eye to absorb light so it does not reflect.

Back 55

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Front 56

Ciliary Body

Function:

- contains smooth muscles that alter the shape of the lens, cells secrete aqueous humor into the anterior cavity.

Back 56

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Front 57

Iris

Function:

- controls the amount of light entering the eye by regulates the size of the pupil.

Back 57

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Front 58

Pupil

Back 58

Front 59

Nervous Tunic

Back 59

Front 60

Retina

Function:

-receives light focused from the lens, converts it into neuro signals and sends them to the brain.

Back 60

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Front 61

Fovea Centralis

Function:

-focuses light on the retina

Back 61

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Front 62

Optic Disk

Back 62

Front 63

Lens

Function:

-changes shape to focus the light image on the central fovea of the macula lutea

Back 63

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Front 64

Anterior Cavity

Back 64

Front 65

Aqueous Humor

Back 65

Front 66

Anterior chamber of anterior cavity

Back 66

Front 67

Posterior chamber of anterior cavity

Back 67

Front 68

Posterior Cavity

Back 68

Front 69

Vitreous humor

Back 69

Front 70

Optic Nerve

Function:

-transfers visual information from the retina to the vision centers of the brain via electrical impulses.

Back 70

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Front 71

Extrinsic muscle of the eye

Function:

-control the movement of the eyes

Back 71

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Front 72

Superior Oblique (tendon)

Back 72

Front 73

Inferior Oblique

Back 73

Front 74

Superior Rectus

Back 74

Front 75

Inferior Rectus

Back 75

Front 76

Lateral Rectus

Back 76

Front 77

Medial Rectus

Back 77

Front 78

Ear

Back 78

Front 79

External Outer Ear

Back 79

Front 80

Pinna

Back 80

Front 81

Helix

Back 81

Front 82

Lobe

Back 82

Front 83

External Auditory Canal

Function:

-has a self cleaning function to keep sound pathway clear of debri

Back 83

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Front 84

Tympanic Membrane

Function:

-converts sound waves into mechanical vibrations

Back 84

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Front 85

Middle Ear

Back 85

Front 86

Auditory tube

Back 86

Front 87

Auditory ossicles

Function:

-transfer the mechanical vibrations of the tympanic membrane to the oval window of the inner ear.

Back 87

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Front 88

Malleus

Back 88

Front 89

Incus

Back 89

Front 90

Stapes

Back 90

Front 91

Inner ear

Back 91

Front 92

Semicircular canals

Function:

-function in balance equilibrium (helps you keep your balance)

Back 92

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Front 93

Ampulla

Back 93

Front 94

Vestibule

Function:

-contains to important parts that help you keep your balance while standing and moving

Back 94

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Front 95

Oval Window

Function:

-receives mechanical vibrations from the auditory ossicles.

Back 95

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Front 96

Round Window

Function:

-absorbs vibrations from inside the cochlea to prevent "echoing" of sounds.

Back 96

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Front 97

Cochlea

Function:

- functions for hearing- has the organ of corti that changes mechanical vibrations into action potentials that are translated by the brain.

Back 97

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Front 98

organ of corti

Back 98

Front 99

Vestibulocochlear nerve

Back 99

Front 100

Vestibular branch

Back 100

Front 101

Cochlear branch

Back 101

Front 102

Testis

Function:

-produces spermatozoa

Back 102

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Front 103

Epididymis

Function:

- where the spermatozoa undergo further development and are stored until ejaculation.

Back 103

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Front 104

Scrotum

Function:

-suspends testes outside of the body to ensure the proper temperature for sperm cell development.

Back 104

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Front 105

Spermatic Cord

Back 105

Front 106

Ductus Deferens

Function:

-during ejaculation the tube transports sperm from the epidymis to the ejaculatory duct.

Back 106

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Front 107

Seminal Vesicle

Function:

-secrete the alkaline viscous component of semen into the ejaculatory duct.

Back 107

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Front 108

Ejaculatory Duct

Function:

- collects the spermatozoa from the ductus deferens and the seminal fluid from the seminal vesicles and empties them into the prostatic urethra

Back 108

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Front 109

Prostate Gland

Function:

-secretes a slightly acidic fluid into the prostatic urethra

Back 109

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Front 110

Urethra

Function:

- passage that urine takes from the urinary bladder and semen takes during an ejaculation.

Back 110

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Front 111

Prostatic Urethra

Back 111

Front 112

Penile urethra

Back 112

Front 113

Penis

Function:

-the male organ of copulation and urination

Back 113

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Front 114

Glans Penis

Back 114

Front 115

Urethral Orifice

Back 115

Front 116

Ovary

Back 116

Front 117

fallopian Tube

Function:

-place where an oocyte is fertilized by sperm

Back 117

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Front 118

Fimbriae

Function:

- sweep the oocyte into the uterine tube immediately after ovulation

Back 118

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Front 119

Infundibulum

Back 119

Front 120

Uterus

Function:

- responsible for the development of the embryo and fetus during pregnancy

Back 120

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Front 121

Cervix

Function:

-connects the vagina to the uterine

Back 121

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Front 122

Vagina

Function:

- passageway for menstruation, inferior portion of the birth canal, the receptacle for the penis during intercourse.

Back 122

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Front 123

Labia Minora

Back 123

Front 124

Labia majora

Back 124

Front 125

Clitoris

Back 125