Chapter 45
Hormones and
the Endocrine
System
Module 1
Lecture Presentations by
Nicole Tunbridge and
© 2021 Pearson Education, Inc. Kathleen Fitzpatrick
Figure 45.1a
Male and Female Elephant Seals
© 2021 Pearson Education, Inc.
1
,Figure 45.1b
© 2021 Pearson Education, Inc.
The Body’s Long-Distance Regulators
© 2017 Pearson Education, Inc.
2
, Figure 45.1b
© 2021 Pearson Education, Inc.
Concept 45.1: Hormones and other signaling molecules
bind to target receptors, triggering specific response
pathways
© 2017 Pearson Education, Inc.
3
Hormones and
the Endocrine
System
Module 1
Lecture Presentations by
Nicole Tunbridge and
© 2021 Pearson Education, Inc. Kathleen Fitzpatrick
Figure 45.1a
Male and Female Elephant Seals
© 2021 Pearson Education, Inc.
1
,Figure 45.1b
© 2021 Pearson Education, Inc.
The Body’s Long-Distance Regulators
© 2017 Pearson Education, Inc.
2
, Figure 45.1b
© 2021 Pearson Education, Inc.
Concept 45.1: Hormones and other signaling molecules
bind to target receptors, triggering specific response
pathways
© 2017 Pearson Education, Inc.
3
