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A Few Additional Slides to Help Your Study for BIOL 233 Lecture Exam #1
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Human Anatomy and Physiology, 7eby Elaine Marieb & Katja Hoehn
Copyright © 2007 Pearson Education, Inc.,publishing as Benjamin Cummings.
Figure 19.5: Blood pressure in various blood vessels of the systemic circulation, p. 725.
Systolic pressure
Mean pressure
Diastolic pressure
Blo
od
pre
ssu
re (
mm
Hg
)
0
20
40
60
80
100
120
Ao
rta
Art
erie
s
Art
erio
les
Cap
illar
ies
Ven
ule
s
Vei
ns
Ven
ae c
avae
Florence Rena Saba – 1871-1953 - discovered important link between blood
vessel and lymphatic vessel genesis
Human Anatomy and Physiology, 7eby Elaine Marieb & Katja Hoehn
Copyright © 2007 Pearson Education, Inc.,publishing as Benjamin Cummings.
Figure 20.1: Distribution and special structural features of lymphatic capillaries, p. 774.
Venoussystem
Arterialsystem
Heart
Lymph ductLymph trunkLymph node
Lymphaticsystem
Lymphaticcollecting
vessels,with
valves
Lymphaticcapillary
Bloodcapillaries
Tissue cell Bloodcapillaries
Tissue fluid
Venule Arteriole
Lymphatic capillary
Loose connective tissue around capillaries
Fibroblast in looseconnective tissue
Flaplike minivalve
Endothelialcell
Filamentsanchored toconnectivetissue
(a)
(b)
Human Anatomy and Physiology, 7eby Elaine Marieb & Katja Hoehn
Copyright © 2007 Pearson Education, Inc.,publishing as Benjamin Cummings.
Figure 20.2a: The lymphatic system, p. 776.
Cervicalnodes
Entrance ofright lymphaticduct into rightsubclavian vein
Internaljugular veinEntrance of thoracicduct into leftsubclavian veinThoracic duct
Cisterna chyliLymphaticcollectingvessels
Axillarynodes
Inguinalnodes
Regionallymph nodes:
Aorta
(a)
Human Anatomy and Physiology, 7eby Elaine Marieb & Katja Hoehn
Copyright © 2007 Pearson Education, Inc.,publishing as Benjamin Cummings.
Figure 20.4: Lymph node, p. 778.
(b)(a)
Follicles
Trabecula
Subcapsularsinus
Capsule
MedullarycordsMedullarysinuses
Afferentlymphaticvessels
Efferentlymphaticvessels
Capsule
Trabeculae
Hilum
Cortex:• Lymphoid follicle• Germinal center• Subcapsular sinus
Medulla:• Medullary cord• Medullary sinus
Human Anatomy and Physiology, 7eby Elaine Marieb & Katja Hoehn
Copyright © 2007 Pearson Education, Inc.,publishing as Benjamin Cummings.
Figure 20.5: Lymphoid organs, p. 779.
Tonsils (inpharyngealregion)
Thymus (inthorax; mostactive duringyouth)
Spleen (curvesaround left sideof stomach)
Peyer’s patches(in intestine)Appendix
